CN116137857A

CN116137857A - Household toilet waste treatment system including biological treatment apparatus and combustion apparatus, and method of treating toilet waste by using the same

Info

Publication number: CN116137857A
Application number: CN202180060313.4A
Authority: CN
Inventors: 金洛钟; 金起男; 张元硕; 黄胜湜
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2020-05-27
Filing date: 2021-05-12
Publication date: 2023-05-19
Also published as: WO2021241922A1; EP4159694A1; KR20220145906A; US20230212049A1

Abstract

A household toilet waste treatment system including a solid-liquid separation toilet, a biological treatment apparatus, a sterilization apparatus, and a combustion apparatus, and a method of treating toilet waste using the same are provided. The combustion apparatus supplements the slow biological treatment apparatus enough to allow continuous treatment of household toilet waste in a unit space without long-distance piping connection.

Description

Household toilet waste treatment system including biological treatment apparatus and combustion apparatus, and method of treating toilet waste by using the same

Technical Field

A household toilet waste treatment system including a biological treatment apparatus and a combustion apparatus, and a method of treating toilet waste by using the same are provided.

Background

About 23 million people in the world population are known to live in environments without a basic toilet. Thus, many people are known to be exposed to contaminated environments. In particular, many urban persons in poor countries without sewage disposal facilities use contaminated water as drinking water. Thus, in less developed countries without sewage disposal facilities or even in developed countries, individual houses need an environmentally friendly toilet system capable of achieving self-purification of excrement.

Public restroom systems exist that perform only biological processes. However, the related art public toilet system processes the toilet waste at a slow speed during the biological treatment process, and thus an excessively large system is required to solve the problem, and it is impossible to completely decompose the solids.

Accordingly, even though the related art is passed, there is still a need for an alternative household toilet waste treatment system.

Disclosure of Invention

Technical problem

One aspect provides a household toilet waste treatment system, comprising: a solid-liquid separation toilet 100 for separating toilet waste into liquid toilet waste and solid toilet waste; a bio-processing device 120 for bio-processing the liquid toilet waste transferred from the solid-liquid separation toilet 100; a sterilizing device 140 for sterilizing (disinfecting) the biologically treated liquid waste transferred from the biological treatment device 120; and a combustion apparatus 164 for combusting the solid toilet waste transferred from the solid-liquid separation toilet 100 and the biologically treated solid waste transferred from the biological treatment apparatus 120.

Another aspect provides a household toilet waste treatment system comprising: a solid-liquid separation toilet 100 for separating toilet waste into liquid toilet waste and solid toilet waste; a bio-processing device 120 for bio-processing the liquid toilet waste transferred from the solid-liquid separation toilet 100; an anaerobic digestion bioreactor 180 for biologically treating the solid toilet waste transferred from the solid-liquid separation toilet 100 under anaerobic conditions; a sterilizing device 140 for sterilizing the bio-processed liquid waste transferred from the bio-processing device 120; and a combustion apparatus 164 for combusting the anaerobically digested solid toilet waste transferred from the anaerobic digestion bioreactor 180 and the biologically treated solid toilet waste transferred from the biological treatment apparatus 120.

In another aspect, there is provided a method of treating toilet waste, the method comprising: separating the toilet waste into liquid toilet waste and solid toilet waste by throwing the toilet waste into a solid-liquid separation toilet; delivering the separated solid toilet waste to a combustion apparatus for combustion and delivering the separated liquid toilet waste to a bio-treatment apparatus for bio-treatment; delivering the biologically treated liquid waste to a sterilizing device for sterilization; a portion of the residue (sludge) of the biologically treated liquid waste is transferred to a combustion device and a portion of the residue is transferred to an anoxic bioreactor of the biological treatment device to be supplemented with microorganisms.

In another aspect, there is provided a method of treating toilet waste, the method comprising: separating the toilet waste into liquid toilet waste and solid toilet waste by throwing the toilet waste into a solid-liquid separation toilet; transferring the separated solid toilet waste to an anaerobic digestion bioreactor for anaerobic digestion; delivering the liquid toilet waste separated at the separation step and the liquid waste dissolved (solubilized) at the anaerobic digestion step to a biological treatment apparatus for biological treatment; delivering the biologically treated liquid waste to a sterilizing device for sterilization; delivering a portion of the residue of the liquid waste biologically treated at the biological treatment step to a combustion device for combustion and delivering a portion of the residue to an anoxic bioreactor of the biological treatment device to be supplemented with microorganisms; and transferring the residue obtained in the anaerobic digestion step to a combustion device for combustion.

Solution to the problem

One aspect provides a household toilet waste treatment system, comprising: a solid-liquid separation toilet 100 for separating toilet waste into liquid toilet waste and solid toilet waste; a bio-processing device 120 for bio-processing the liquid toilet waste transferred from the solid-liquid separation toilet 100; a sterilizing device 140 for sterilizing the bio-processed liquid waste transferred from the bio-processing device 120; and a combustion apparatus 164 for combusting the solid toilet waste transferred from the solid-liquid separation toilet 100 and the biologically treated solid waste transferred from the biological treatment apparatus 120.

In the present specification, the term "toilet waste" may include feces, urine, or a combination thereof. The toilet waste may further include toilet paper, flush water, or a combination thereof.

In the household toilet waste treatment system, the solid-liquid separation toilet may include a liquid collecting unit for containing the separated liquid toilet waste and a solid collecting unit for containing the separated solid toilet waste. The liquid collection unit may be connected to a biological treatment apparatus. The solids collection unit may be connected to a combustion apparatus. The liquid toilet waste collected in the liquid collecting unit may be continuously transferred to the bio-processing apparatus, or may be stored in a liquid toilet waste reservoir and then transferred to the bio-processing apparatus. Accordingly, the home toilet waste treatment system may include a liquid toilet waste reservoir connected to and disposed between the liquid collecting unit and the bio-treatment device of the solid-liquid separation toilet. In addition, the solid waste toilet collected in the solid collecting unit may be continuously transferred to the combustion apparatus, or may be stored in a solid waste storage and then transferred to the combustion apparatus. Accordingly, the household toilet waste treatment system may include a solid toilet waste reservoir connected to and disposed between the solid collecting unit and the combustion apparatus of the solid-liquid separation toilet.

For example, the solid-liquid separation lavatory 100 may include a main body and a collecting member. The body may have a fecal conveying surface and a fecal isolation surface. The waste transfer surface may be used to transfer toilet waste. The faecal isolation surface may be arranged below the faecal transport surface. The waste isolation surface may be used to separate the toilet waste provided from the waste transport surface into liquid waste and solid waste. The collection member may include a liquid collection area for containing liquid waste and a solid collection area for containing solid waste. The liquid waste may be transferred to a buffer tank (buffer tank) external to the solid-liquid separation toilet 100 via passage through a liquid collection area. The solid toilet waste may be transferred to a solid treatment facility (not shown) external to the solid-liquid separation toilet 100 via passage through a solid collection area.

The solid-liquid separation toilet may be configured to have a solid separation rate and a liquid separation rate suitable for providing liquid toilet waste in an amount less than or equal to an average Chemical Oxygen Demand (COD) amount that may be consumed in the bioreactor. For example, a solid-liquid separation toilet may be configured to have a solid separation rate and a liquid separation rate of 50% -100%, respectively. The solid separation rate refers to a ratio of separating the solid component of the introduced toilet waste into solids. The solids separation rate can be calculated as follows: proportion of total solids content separated from Total Suspended Solids (TSS) in the incoming toilet waste. The liquid separation rate refers to a ratio of separating the liquid component of the introduced toilet waste into liquids. The liquid separation rate can be calculated as follows: the proportion of the total volume of the portion of the introduced toilet waste in which the total volume is separated into liquid. The solids separation rate may be in the range of, for example, 60% -100%, 70% -100%, 80% -100%, 90% -100%, 95% -100%, 97.5% -100%, 60% -95%, 70% -90%, 80% -95%, 90% -95%, 95% -97.5%, or 70% -95%. In addition, the liquid separation rate may be in the range of, for example, 60% -100%, 70% -100%, 80% -100%, 90% -100%, 95% -100%, 97.5% -100%, 60% -95%, 70% -90%, 80% -95%, 90% -95%, 95% -97.5%, or 70% -95%. For example, solid waste toilet may be separated and transferred to a combustion apparatus at a separation rate of greater than or equal to 90%, and liquid waste toilet may be separated and transferred to a biological treatment apparatus at a separation rate of greater than or equal to 80%.

In a domestic toilet waste treatment system, the biological treatment apparatus may be a bioreactor that does not include an anaerobic digestion bioreactor, or a combination thereof. Bioreactors that do not include anaerobic digestion bioreactors may include anaerobic bioreactors, anoxic bioreactors, oxygen-containing (aerobic) bioreactors, or combinations thereof. Such a combination may include the following: wherein the at least one anoxic bioreactor is connected to the at least one oxygenated bioreactor such that the liquid toilet waste treated in the preceding bioreactor is transferred to the following bioreactor for continuous treatment.

Additionally, the biological treatment apparatus may comprise an Anaerobic Digestion (AD) bioreactor. The AD bioreactor may be arranged in combination with: a bioreactor that does not include an AD bioreactor, or a combination thereof. The AD bioreactor may be arranged in front of a bioreactor not including the AD bioreactor, or a combination thereof, such that liquid toilet waste transferred from the solid-liquid separation toilet may flow in, and organic substances may be dissolved by anaerobic digestion. The AD bioreactor may further include a settling tank (settling tank) connected thereto for settling the anaerobically digested liquid toilet waste transferred from the AD bioreactor. The settling tank may be connected to the combustion apparatus to transfer the solid components settled in the liquid toilet waste to the combustion apparatus. The settling tank may be connected to a bioreactor, e.g., a bioreactor that does not include an AD bioreactor, or a combination thereof, to transfer liquid components that are not settled in the liquid toilet waste to a subsequently connected bioreactor. The AD bioreactor may include a vent formed to vent gases generated during the anaerobic digestion process. The gas may include CH ₄ 、CO ₂ Or N ₂ And (3) gas.

In the present specification, the term "biological treatment apparatus" means a bioreactor including microorganisms, and may include a device for converting liquid toilet waste into other compounds by the metabolic action of microorganisms. Depending on the purpose of the treatment, the bioreactor may have suitable oxygen conditions, such as anaerobic conditions, oxygen-containing conditions, or anoxic conditions. The bioreactor may include a stirrer for stirring the reaction mixture or providing oxygen, or an oxygen supply. The oxygen supply may be an air supply device such as a gas injection device (bubbling device).

Unless otherwise defined, the terms "anaerobic digestion bioreactor", "anaerobic bioreactor", "anoxic bioreactor", "aerobic bioreactor", "partial nitrification bioreactor" or "anaerobic ammoxidation (Anammox) bioreactor" or "anaerobic ammoxidation bioreactor" as used in this specification may have meanings known to those of ordinary skill in the art to which the claimed invention pertains. For example, an anaerobic digestion bioreactor may be configured to decompose biodegradable organic substances under anoxic conditions by using microorganisms. The anaerobic digestion bioreactor may include a mixing device as a reactor with an oxygen-blocking closed structure (a mixing device with an oxygen-blocking closed structure as a reactor). Anaerobic digestion refers to the process of decomposing biodegradable organic matter into methane and carbon dioxide in the absence of oxygen molecules in an anaerobic digestion bioreactor. The solid toilet waste may be decomposed by anaerobic digestion, and thus the amount thereof may be reduced. Anaerobic digestion can be generally performed in three steps: dissolution (solubilization) and hydrolysis; acid production; and methanogenesis. In this specification, anaerobic digestion may include not only complete anaerobic digestion but also partial anaerobic digestion. The partial anaerobic digestion may be carried out by dissolution and hydrolysis or acid production in only three steps. The household toilet waste treatment system includes a combustion apparatus for burning solid toilet waste, and thus the solid toilet waste can be treated in such a way. Thus, there is no need to completely digest the solid toilet waste and convert the solid toilet waste into biogas (biogas) such as methane and carbon dioxide in the anaerobic digestion bioreactor. Instead, the solid toilet waste may instead be digested to an appropriate stage in consideration of the amount, cost, energy consumption, and the like. The residence time of the solid toilet waste in the anaerobic digestion bioreactor may vary depending on the targeted degree of anaerobic digestion. For example, the residence time may refer to the time required for the solid toilet waste to be digested only by dissolution and hydrolysis, by until acid is produced, or by until methane is produced. The residence time may be, for example, on the order of a few days. In an anaerobic digestion bioreactor, the Dissolved Oxygen (DO) concentration may be about 0mg/L, or the oxidation-reduction potential (ORP) may be less than or equal to about-100 mV, for example, less than or equal to about-200 mV. The anaerobic digestion bioreactor may contain aerobically (aerobically) digested microorganisms that anaerobically digest organic matter, or mixtures thereof. The microorganism may include an acidogenic microorganism, such as clostridium formiate acetate (Clostridium formicoaceticum) or acetobacter wushui (Acetobacterium woodi). The microorganism may also include methanogens, such as methanobacteria, methanococcus, methanosarcina, methanospira, or methanotrophic bacteria.

Anaerobic bioreactors can be used to accumulate macromolecular substances in microorganisms for the purpose of excessive uptake of phosphorus and to secrete phosphorus. Anaerobic bioreactors may include mixing devices as reactors with closed structures that block oxygen. The residence time of the waste in the anaerobic bioreactor may refer to a time sufficient for excess uptake of phosphorus. The residence time may be, for example, from a few hours to about 1 day. In an anaerobic bioreactor, the DO concentration may be about 0mg/L, or the ORP may be less than or equal to about-100 mV, for example, less than or equal to about-200 mV. Anaerobic bioreactors may contain microorganisms that ingest phosphorus excessively into the body. The microorganism may be a Phosphorus Accumulating Bacterium (PAB).

Anoxic bioreactors may be used to perform denitrification (denitrification, denitrogenation) reactions under agitation without oxygen injection. The anoxic bioreactor may be a bioreactor in which oxygen is present in the headspace gas and dissolved oxygen is present minutely by having a mixing device. Oxygen concentrations may be considered as DO in the range of about 0mg/L to about 0.2mg/L, or ORP in the range of about-50 mV to about 50 mV. The anoxic bioreactor may comprise denitrifying microorganisms.

An oxygen-containing bioreactor may refer to a bioreactor having a high DO concentration and may be used to perform ammoxidation and nitrification. The oxygen-containing bioreactor may include an aerator for forced injection of air or oxygen. The oxygen-containing bioreactor may comprise Ammonia Oxidizing Bacteria (AOB), nitrite Oxidizing Bacteria (NOB), or a combination thereof. In an aerobic bioreactor, the oxygen concentration can be considered to be DO greater than or equal to about 0.2mg/L or ORP greater than or equal to about 100 mV.

The partial nitrification bioreactor may be an oxygen-containing bioreactor in which ammonia nitrogen is oxidized only to nitrite (nitrite) nitrogen, and not nitrate (nitrate) nitrogen. In a partial nitrification bioreactor, AOB predominates and thus ammonia nitrogen can be oxidized to nitrite nitrogen only. For the predominance of AOB in a partial nitrification bioreactor, an environment can be created in which AOB is favorable for survival while NOB is difficult to survive. The nitrite produced in the partial nitrification bioreactor may then be transferred to an anaerobic ammonia oxidation bioreactor for denitrification.

The anaerobic ammoxidation bioreactor may be a bioreactor in which ammonia is directly oxidized under anaerobic conditions. The anaerobic ammoxidation bioreactor may comprise autotrophic denitrifying microorganisms that can produce nitrogen under anoxic conditions through the reaction between ammonia nitrogen as an electron donor and nitrite as an electron acceptor. Autotrophic denitrifying microorganisms are also known as anammox bacteria. In an anaerobic ammoxidation bioreactor, nitrite and ammonium can be directly converted to nitrogen and water as shown in the following formula:

NH ₄ ⁺ +NO ₂ ^- ->N ₂ +2H ₂ O

anaerobic ammonia oxidizing bacteria may belong to the phylum of the Plactomycetes. Anaerobic ammonia oxidizing bacteria may belong to the genus Brocadia, the genus Kuenenia, the genus Anamoxolobus, the genus Jettenia, the genus Scarindura, or combinations thereof.

The oxygen concentration in the anaerobic ammoxidation bioreactor may be similar to the oxygen concentration in an anaerobic bioreactor or an anoxic bioreactor. Oxygen concentration may be considered, for example, as DO of less than or equal to about 0.2mg/L or ORP of less than or equal to about 150 mV.

The biological treatment apparatus may include: anoxic bioreactor (a) and oxygenated bioreactor (O) (hereinafter also referred to as 'AO'); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), and an anoxic bioreactor (a); anaerobic bioreactor, anoxic bioreactor (a), and oxygenated bioreactor (a) (hereinafter also referred to as 'AOA'); anoxic bioreactor (a), anoxic bioreactor (O), anoxic bioreactor (a), and anoxic bioreactor (O) (hereinafter also referred to as '4-step Bardenpho'); anaerobic bioreactor, oxygen-containing bioreactor (O), anoxic bioreactor (a), oxygen-containing bioreactor (O), and anoxic bioreactor (a) (hereinafter also referred to as '5-step Bardenpho'); modified university of capendon (mugt) reactor; university of Capeton (UCT) reactor; a sequencing batch reactor; a partial nitrification bioreactor and an anaerobic ammonia oxidation bioreactor; an anaerobic ammoxidation bioreactor; or a combination thereof.

In the UCT bioreactor, the anaerobic bioreactor, the anoxic bioreactor, the oxygen-containing bioreactor, and the precipitation tank may be sequentially connected to each other, wherein the anoxic bioreactor may be connected to the anaerobic bioreactor such that a reaction product of the anoxic bioreactor may be returned to the front of the anaerobic bioreactor, and the oxygen-containing bioreactor may be connected to the anoxic bioreactor such that a reaction product of the anoxic bioreactor may be returned to the front of the anoxic bioreactor. The precipitation tank may be connected to the anoxic bioreactor and the combustion device such that the precipitate may be transferred to the front of the anoxic bioreactor or to the combustion device.

The MUCT bioreactor refers to the UCT bioreactor as follows: wherein the oxygen-containing bioreactor is divided into two anoxic bioreactors, i.e., a first anoxic bioreactor and a second anoxic bioreactor, and thus the anaerobic bioreactors, the first anoxic bioreactors, the second anoxic bioreactors, the oxygen-containing bioreactors, and the settling tank may be sequentially connected to each other, wherein the first anoxic bioreactors may be connected to the anaerobic bioreactors such that reaction products of the first anoxic bioreactors may be returned to the front of the anaerobic bioreactors, and the oxygen-containing bioreactors may be connected to the second anoxic bioreactors such that reaction products of the oxygen-containing bioreactors may be returned to the anoxic bioreactors. The precipitation tank may be connected to the second anoxic bioreactor and the combustion device such that the precipitate may be transferred to the second anoxic bioreactor or the combustion device.

In the home toilet waste treatment system, the sterilizing device may be any sterilizing device known in the art of home toilet waste treatment systems. The sterilization apparatus may be connected to the bioreactor for use. The sterilization apparatus may be disposed in one structure (building) with other elements of the home toilet waste treatment system, rather than in a separate structure.

The sterilization device may be a device provided with a sterilization medium. The sterilization medium may include steam, heat, radiation, plasma, ozone, vaporized hydrogen peroxide, vaporized peracetic acid, at least one gaseous sterilant, at least one liquid sterilant, or a filter medium. The sterilization device may comprise a heater, a radiation illuminator, an electrochemical sterilization device, or a filtration device. The electrochemical sterilization device may include an electrode, and the electrochemical generation of the sterilizing species may be initiated by flowing an electrical current through the electrode to the water. The sterilizing species may include species generated by the water itself, such as ozone, or by those dissolved in the water, such as those that oxidize chloride ions to free chlorine. The sterilization device may include, for example, an ozone generator, an ultraviolet illuminator, an ozone generator and ultraviolet illuminator, a heater, a plasma generator, a filtration device, an electrochemical sterilization device, or a combination thereof. The home toilet waste treatment system may include a sterilizing bioreactor containing the biologically treated liquid toilet waste transferred from the biological treatment apparatus, and the sterilizing apparatus may be connected to the sterilizing bioreactor to perform a sterilizing treatment.

In a household toilet waste treatment system, a combustion apparatus may include a container for holding solid waste and a heater for applying heat to the solid waste in the container. The combustion apparatus may include a dryer for drying the solid waste prior to burning the waste. The combustion apparatus may include a fuel injector for injecting fuel into the vessel and an igniter for igniting the fuel injected into the vessel. In addition, the combustion apparatus may include a container separate from the container of the dryer for containing the dried solid waste conveyed from the container of the dryer. The fuel may be biogas transferred from a biological treatment facility or anaerobic digestion bioreactor.

For example, the combustion apparatus 164 may include a dehydrator, a dryer, and a sub-combustion device. The solid waste provided to the combustion apparatus 164 may be sequentially passed through a dehydrator, a dryer, and a sub-combustion device. The combustion apparatus may be configured as a unit connected to the dehydrator, the dryer, or both the dehydrator and the dryer. In this regard, the solid toilet waste containing moisture can be rapidly and effectively removed by combustion. Thus, by removing a portion of the COD in the toilet waste through the combustion apparatus, the amount of the inflow COD into the bioreactor can be maintained at a level equal to or lower than the amount that can be consumed by the microorganisms contained in the bioreactor. In this regard, the combustion apparatus may complement the slow processing rate of the toilet waste by the bioreactor. The dehydrator may extract the liquid component from the solid waste such that the solid component in the solid waste may be in the range of about 25% to about 30%. The dryer may evaporate the liquid component in the solid waste such that the solid component in the solid waste may be in the range of about 90% to about 100%. The sub-combustion device may burn the solid waste.

In this specification, the term "combustion" may refer not only to complete combustion but also to partial combustion. Combustion may refer not only to flame combustion but also to smoldering (smoldering). Burned solids may refer to, for example, ash or coke, the surface or part of which solid waste has been burned.

The domestic toilet waste treatment system may further include a dehydrator for dehydrating the solid toilet waste transferred from the solid-liquid separation toilet to the combustion apparatus and the biologically treated solid waste transferred from the biological treatment apparatus to the combustion apparatus. The dehydrator may comprise an extruder, a filter, or a centrifuge. The solid waste conveyed from the biological treatment apparatus to the combustion apparatus may be non-biodegradable waste or biomass. The solid waste transferred from the biological treatment apparatus to the combustion apparatus may be a residue or an activated residue. The dehydrator may be connected to the combustion device to transfer the dehydrated solid waste to the combustion device. The transfer of the dewatered solid waste from the dewaterer to the combustion apparatus may be accomplished by a conveying means such as a conveyor belt, screw, auger, or pump, or by natural forces such as gravity. The household toilet waste treatment system may include a conveyor, such as a conveyor belt, screw, auger, or pump, connected thereto so that the dewatered solid waste may be transferred from the dehydrator to the combustion device. The combustion device may be integrated with the dryer or may be arranged separately from the dryer. When the dryer is arranged separately from the combustion device, the means for conveying the dried solids may be comprised in the interior of the dryer or at the rear end of the dryer.

Thus, the term "solid waste" as used in this specification may refer to a solid component, and may include not only completely dry solid waste, but also solid waste containing moisture to some extent. The moisture content in the solid waste may be, for example, in the range of 0% -99%, 0% -90%, 0% -70%, 0% -50%, 0% -40%, 5% -40%, 10% -40%, 15% -40%, 20% -40%, or 10% -30%. The water trap may be disposed between the solid-liquid separation toilet and the combustion apparatus or between the biological treatment apparatus and the combustion apparatus. The water separator may be present separately from the combustion device or may be present by forming a unit with the combustion device. The unit may include, for example, a dehydrator and a sub-combustion device. The combustion apparatus may include a dehydrator, a dryer, and a sub-combustion device. The combustion apparatus may be continuously connected such that the solid toilet waste may be dehydrated in a dehydrator, dried in a dryer, and burned in a sub-combustion device. The dryer may include a heater, wherein the heater applies heat to the solid waste to evaporate the moisture. The dryer may be configured to sterilize during evaporation of the water and heating.

The biological treatment apparatus may include a settling tank for settling the biologically treated waste. The settling tank may include an inlet through which the biologically treated waste may be introduced from the bioreactor of the biological treatment apparatus. In addition, the precipitation tank may be connected to a bioreactor of the biological treatment device to return the precipitate to the bioreactor, and/or may be connected to the combustion device to transfer the precipitate to the combustion device. The settling tank, bioreactor and/or combustion device may comprise a regulator, such as a valve, for regulating the flow rate of the water delivered.

In a domestic toilet waste treatment system, the biological treatment apparatus may be connected to a water reservoir such that the biologically treated water may be transferred to the water reservoir. The water reservoir may be a reservoir for flushing water of a solid-liquid separation toilet. Accordingly, the home toilet waste treatment system may have a path for recycling water purified from the toilet waste to be used as flushing water.

The home toilet waste treatment system may further include a filter installed to filter the bio-treated water transferred from the bio-treatment device to the water reservoir.

In the domestic toilet waste treatment system, the bio-treatment apparatus may include an exhaust port formed to exhaust gas generated during the bio-treatment process. The gas may comprise CO ₂ 、CH ₄ Or N ₂ And (3) gas.

In an embodiment, a home toilet waste treatment system may include: a solid-liquid separation toilet 100 for separating toilet waste into liquid toilet waste and solid toilet waste; a bio-processing device 120 for bio-processing the liquid toilet waste transferred from the solid-liquid separation toilet 110; a sterilizing device 140 for sterilizing the bio-processed liquid waste transferred from the bio-processing device 120; and a combustion apparatus 164 for combusting the solid toilet waste conveyed from the solid-liquid separation toilet 110 and the biologically treated solid waste conveyed from the biological treatment apparatus 120, wherein the biological treatment apparatus 120 may further include a settling tank for settling the biologically treated waste, and the settling tank may include an inlet for introducing the biologically treated waste from a bioreactor of the biological treatment apparatus 120 and may be connected to the bioreactor to return the sediment to the bioreactor of the biological treatment apparatus 120 and/or may be connected to the combustion apparatus 164 to convey the sediment to the combustion apparatus 164.

The sterilization apparatus may be any sterilization apparatus known in the art of a household toilet waste treatment system. The sterilization apparatus may be connected to the bioreactor for use. The sterilization apparatus may be disposed in one structure with other elements of the home toilet waste treatment system, rather than in a separate structure.

The sterilization device may be a device provided with a sterilization medium. The sterilization medium may include steam, heat, radiation, plasma, ozone, vaporized hydrogen peroxide, vaporized peracetic acid, at least one gaseous sterilant, at least one liquid sterilant, or a filter medium. The sterilization device may comprise a heater, a radiation illuminator, an electrochemical sterilization device, or a filtration device. The electrochemical sterilization device may include an electrode, and the electrochemical generation of the sterilizing species may be initiated by flowing an electrical current through the electrode to the water. The sterilizing species may include species generated by the water itself, such as ozone, or by those dissolved in the water, such as those that oxidize chloride ions to free chlorine. The sterilization device may include, for example, an ozone generator, an ultraviolet illuminator, an ozone generator and ultraviolet illuminator, a heater, a plasma generator, a filtration device, an electrochemical sterilization device, or a combination thereof. The sterilization apparatus may include a sterilization bioreactor for containing the biologically treated liquid waste conveyed from the ozone generator, the ultraviolet illuminator, or the ozone generator, and from both the ultraviolet illuminator and the biological treatment apparatus. The sterilization apparatus may be connected to a sterilization bioreactor for sterilization. In an embodiment, the combustion apparatus may include a container for containing solid waste and a heater for applying heat to the solid toilet waste in the container. The combustion apparatus may comprise a dryer for drying the solid waste prior to combustion. The combustion apparatus may include a fuel injector for injecting fuel into a vessel of the combustion apparatus and an igniter for igniting the fuel injected into the vessel. In addition, the combustion apparatus may include a container separate from the container of the dryer for containing the dried solid waste conveyed from the container of the dryer.

In an embodiment, the biological treatment apparatus may be connected to the water reservoir such that the biologically treated water may be transferred to the water reservoir. The water reservoir may be a reservoir for flushing water of a solid-liquid separation toilet. Accordingly, the home toilet waste treatment system may have a path for recycling water purified from the toilet waste to be used as flushing water. In an embodiment, the home toilet waste treatment system may further include a filter installed to filter the bio-treated water transferred from the bio-treatment device to the water reservoir.

In an embodiment, a biological treatment apparatus may include: an anoxic bioreactor (a) and an oxygenated bioreactor (O); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), and an anoxic bioreactor (a); an anaerobic bioreactor, an anoxic bioreactor (a), and an oxygenated bioreactor (a); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), an anoxic bioreactor (a), and an oxygen-containing bioreactor (O); anaerobic bioreactor, oxygen-containing bioreactor (O), anoxic bioreactor (a), oxygen-containing bioreactor (O), and anoxic bioreactor (a); a MUCT bioreactor; a UCT bioreactor; a sequencing batch reactor; a partial nitrification bioreactor and an anaerobic ammonia oxidation bioreactor; an anaerobic ammoxidation bioreactor; or a combination thereof.

Fig. 1 is a diagram schematically showing an example of a household toilet waste treatment system. In fig. 1, the home toilet waste treatment system includes: a solid-liquid separation toilet 100; a biological treatment apparatus 120; a sterilizing device 140; a combustion device 164; and a flush water reservoir 220. The solid-liquid separation toilet 100 may be connected to the biological treatment apparatus 120 to contain the liquid of the toilet waste, and may be connected to the combustion apparatus 164 to contain the solids of the toilet waste. The combustion apparatus 164 may include a sub-combustion device 160 and a dryer 162. Biological treatment apparatus 120 may include a compartment 122 comprising an anaerobic bioreactor, an anoxic bioreactor, or a combination thereof, an oxygen tank 124, and a precipitation tank 200. The compartment 122 including the anaerobic bioreactor, the anoxic bioreactor, or a combination thereof may be connected to the oxygen tank 124 such that the toilet waste treated in the compartment 122 may be transferred to the oxygen tank 124. The oxygen tank 124 may be connected to the settling tank 200 such that the toilet waste treated in the oxygen tank 124 may be transferred to the settling tank 200. The settling tank 200 may be connected to the anaerobic bioreactor, the anoxic bioreactor 122, or the combustion device 164 such that a portion of the residue settled in the settling tank 200 may be transferred to the front of the anaerobic bioreactor or anoxic bioreactor 122 or to the combustion device 164. The settling tank 200 may be connected to the sterilizing apparatus 140 such that the liquid of the toilet waste treated in the settling tank 200 may be transferred to the sterilizing apparatus 140. The sterilizing apparatus 140 may be connected to the water reservoir 220 such that the toilet waste sterilized in the sterilizing apparatus 140 may be transferred to the flush water reservoir 220. The filter 240 may be connected between the sterilizing apparatus 140 and the flushing water reservoir 220 such that the toilet waste sterilized in the sterilizing apparatus 140 may be filtered and then transferred to the flushing water reservoir 220.

Fig. 2 is an example of a flowchart describing a toilet waste treatment process by using an example of the home toilet waste treatment system of fig. 1. As shown in fig. 2, in the solid-liquid separation toilet 100, the toilet waste may be separated into liquid (i.e., urine and water) and solid (i.e., excrement including feces and water). In the biological treatment apparatus 120, the liquid may undergo anoxic reactions and oxygen-containing digestions in the compartment 122 and the oxygen tank 124, respectively, comprising anaerobic bioreactors, anoxic bioreactors, or combinations thereof, and then sterilized and decolorized in the sterilizing apparatus 140. The sterilized waste may then optionally be filtered and transferred to the flush water reservoir 220. At the same time, the solids may be squeezed or dewatered in a dehydrator, and some of the liquid resulting therefrom may be sent to a compartment 122 and an oxygen tank 124 in a biological treatment device 120 that contains an anaerobic bioreactor, an anoxic bioreactor, or a combination 122 thereof. The remaining solid waste may be dried and burned in the combustion apparatus 164 to become ash or waste whose surfaces or portions have been burned. Here, a portion of the heat generated in the combustion apparatus 164 may be recovered and used to dry the obtained solids.

Fig. 3 is a diagram schematically showing an example of a home toilet waste treatment system including an anaerobic digestion bioreactor 180'. In fig. 3, the home toilet waste treatment system includes: a solid-liquid separation toilet 100; anaerobic digestion bioreactor 180'; a biological treatment apparatus 120; a sterilizing device 140; a combustion device 164; and a flush water reservoir 220. The solid-liquid separation toilet 100 may be connected to the anaerobic digestion bioreactor 180' to contain the liquid of the toilet waste, and may be connected to the combustion apparatus 164 to contain the solids of the toilet waste. The combustion apparatus 164 may include a sub-combustion device 160 and a dryer 162. Anaerobic digestion bioreactor 180' may be connected to a biological treatment apparatus 120 that does not include an anaerobic digestion bioreactor. The anaerobically digested waste may be transferred to a biological treatment device 120 that does not include an anaerobic digestion bioreactor. Biological treatment apparatus 120 may include a compartment 122 comprising an anaerobic bioreactor, an anoxic bioreactor, or a combination thereof, an oxygen tank 124, and a precipitation tank 200. The compartment 122 including the anaerobic bioreactor, the anoxic bioreactor, or a combination thereof may be connected to the oxygen tank 124 such that the toilet waste treated in the compartment 122 may be transferred to the oxygen tank 124. The oxygen tank 124 may be connected to the settling tank 200 such that the toilet waste treated in the oxygen tank 124 may be transferred to the settling tank 200. The settling tank 200 may be connected to the anaerobic bioreactor, the anoxic bioreactor 122, or the combustion device 164 such that a portion of the residue settled in the settling tank 200 may be transferred to the front of the anaerobic bioreactor or anoxic bioreactor 122 or to the combustion device 164. The settling tank 200 may be connected to the sterilizing apparatus 140 such that the liquid of the toilet waste treated in the settling tank 200 may be transferred to the sterilizing apparatus 140. The sterilizing apparatus 140 may be connected to the water reservoir 220 such that the toilet waste sterilized in the sterilizing apparatus 140 may be transferred to the flush water reservoir 220. The filter 240 may be connected between the sterilizing apparatus 140 and the flushing water reservoir 220 such that the toilet waste sterilized in the sterilizing apparatus 140 may be filtered and then transferred to the flushing water reservoir 220.

Fig. 4 is an example of a flowchart describing a toilet waste treatment process by using an example of the home toilet waste treatment system including the anaerobic digestion bioreactor 180' of fig. 3. As shown in fig. 4, in the solid-liquid separation toilet 100, the toilet waste may be separated into liquid (i.e., urine and water) and solid (i.e., excrement including feces and water). The liquid toilet waste may be anaerobically digested and dissolved in the anaerobic digestion bioreactor 180'. In a biological treatment apparatus 120 that does not include an anaerobic digestion bioreactor, anaerobically digested waste may undergo anoxic reactions and aerobic digestion in a compartment 122 and an oxygen tank 124 containing anaerobic bioreactors, anoxic bioreactors, or a combination thereof, respectively, and then sterilized and decolorized in a sterilizing apparatus 140. The sterilized waste may then optionally be filtered and transferred to the flush water reservoir 220. Meanwhile, the solids may be squeezed or dewatered in a dehydrator, and some of the liquid therefrom may be transferred to an anaerobic digestion bioreactor 180', anaerobically digested, and transferred to a compartment 122 containing an anaerobic bioreactor, an anoxic bioreactor, or a combination thereof, and an oxygen tank 124. The remaining solid waste may be dried and burned in the combustion apparatus 164 to become ash or waste whose surfaces or portions have been burned. Here, a portion of the heat generated in the combustion apparatus 164 may be recovered and used to dry the obtained solids.

In a domestic toilet waste treatment system, elements including solid-liquid separation toilets, biological treatment facilities, sterilization facilities, and combustion facilities may be arranged in one structure. The home toilet waste treatment system may be a configuration in which the home toilet waste treatment system is not connected to other elements outside the structure through a pipe, or may be a configuration in which a plurality of separate toilets are connected to each other through a pipe. The home toilet may be configured as follows: wherein individual houses residing nearby are connected to each other by a pipe, or collective houses such as a row house or an apartment can be connected to each other by a pipe to convey the separated solid and liquid toilet wastes through the pipe. If necessary, the home toilet may be used in an outdoor space such as a construction site or a camp. However, a home toilet waste treatment system may be different from a collective treatment facility as follows: wherein solid and liquid toilet waste are mixed and transported through long pipelines of several tens of kilometers for disposal as in existing wastewater treatment facilities.

In the household toilet waste treatment system, the solid-liquid separation toilet may include a liquid collecting unit for containing the separated liquid toilet waste and a solid collecting unit for containing the separated solid toilet waste. The liquid collection unit may be connected to a biological treatment apparatus. The solids collection unit may be connected to a combustion apparatus. The liquid toilet waste collected in the liquid collecting unit may be continuously transferred to the bio-processing apparatus, or may be stored in a liquid toilet waste reservoir and then transferred to the bio-processing apparatus. Accordingly, the home toilet waste treatment system may include a liquid toilet waste reservoir between and connected to the liquid collecting unit and the bio-treatment device of the solid-liquid separation toilet. In addition, the solid waste collected in the solid collecting unit may be continuously transferred to the anaerobic digestion bioreactor 180, or may be first stored in the solid waste storage and then transferred to the anaerobic digestion bioreactor. Thus, the household toilet waste treatment system may include a solid toilet waste reservoir between and connected to the solid collecting unit of the solid-liquid separation toilet and the anaerobic digestion bioreactor. Anaerobic digestion bioreactor 180 may include a mixer 182, a vent 186, or a combination thereof.

The solid-liquid separation toilet may be configured to have a solid separation rate and a liquid separation rate suitable for providing liquid toilet waste in an amount less than or equal to the average COD amount that may be consumed in the bioreactor. For example, a solid-liquid separation toilet may be configured to have a solid separation rate and a liquid separation rate of 50% -100%, respectively. The solid separation rate refers to a ratio of separating the solid component of the introduced toilet waste into solids. The solids separation rate can be calculated as follows: proportion of total solids separated from TSS in the incoming toilet waste. The liquid separation rate refers to a ratio of separating the liquid component of the introduced toilet waste into liquids. The liquid separation rate can be calculated as follows: the proportion of the total volume of the portion of the introduced toilet waste in which the total volume is separated into liquid. The solids separation rate may be, for example, in the range of 60% -100%, 70% -100%, 80% -100%, 90% -100%, 95% -100%, 97.5% -100%, 60% -95%, 70% -90%, 80% -95%, 90% -95%, 95% -97.5%, or 70% -95%. In addition, the liquid separation rate may be, for example, in the range of 60% -100%, 70% -100%, 80% -100%, 90% -100%, 95% -100%, 97.5% -100%, 60% -95%, 70% -90%, 80% -95%, 90% -95%, 95% -97.5%, or 70% -95%. For example, solid waste toilet may be separated at a separation rate of greater than or equal to 90% and transferred to a combustion apparatus, and liquid waste toilet may be separated at a separation rate of greater than or equal to 80% and transferred to a biological treatment apparatus. TSS can be calculated as a ratio expressed in percent obtained by: the solids that failed to pass through a Watman 934-AH filter or similar filter having a level of 1um to 2um pore size were dried.

In a domestic toilet waste treatment system, the biological treatment apparatus may be a bioreactor that does not include an anaerobic digestion bioreactor, or a combination thereof. Bioreactors that do not include an anaerobic digestion bioreactor may include an anaerobic bioreactor, an anoxic bioreactor, an oxygenated bioreactor, or a combination thereof. Such a combination may include the following: wherein the at least one anoxic bioreactor is connected to the at least one oxygenated bioreactor such that the liquid toilet waste treated in the preceding bioreactor reaction is transferred to the following bioreactor for continuous treatment.

In addition, the biological treatment apparatus may optionally comprise an anaerobic digestion AD bioreactor. The AD bioreactor may be arranged in combination with: a bioreactor that does not include an anaerobic digestion bioreactor, or a combination thereof. The AD bioreactor may be arranged in front of a bioreactor not including the AD bioreactor, or a combination thereof, such that liquid toilet waste transferred from the solid-liquid separation toilet may flow in, and organic substances may be dissolved by anaerobic digestion. The AD bioreactor may further comprise a settling tank connected thereto for settling anaerobically digested liquid toilet waste conveyed from the AD bioreactor. The settling tank may be connected to the combustion apparatus to transfer the solid components settled in the liquid toilet waste to the combustion apparatus. The precipitation tank can be connected to the biological reactor A reactor, for example, a bioreactor that does not include an AD bioreactor, or a combination thereof, to deliver liquid components that are not precipitated in the liquid toilet waste to a subsequently connected bioreactor. The AD bioreactor may include a vent formed to vent gases generated during the anaerobic digestion process. The gas may include CH ₄ 、CO ₂ Or N ₂ And (3) gas. When the biological treatment apparatus 120 includes the AD bioreactor 180', the anaerobically digested waste conveyed from the AD bioreactor 180 for anaerobically digesting solid waste may be conveyed to a bioreactor that does not include an AD bioreactor, or a combination thereof.

In the home toilet waste treatment system, the sterilizing device may be any sterilizing device known in the art of home toilet waste treatment systems. The sterilization apparatus may be connected to the bioreactor for use. The sterilization apparatus may be disposed in one structure with other elements of the home toilet waste treatment system, rather than in a separate structure.

The sterilization device may be a device provided with a sterilization medium. The sterilization medium may include steam, heat, radiation, plasma, ozone, vaporized hydrogen peroxide, vaporized peracetic acid, at least one gaseous sterilant, at least one liquid sterilant, or a filter medium. The sterilization device may comprise a heater, a radiation illuminator, an electrochemical sterilization device, or a filtration device. The electrochemical sterilization device may include an electrode, and the electrochemical generation of the sterilizing species may be initiated by flowing an electrical current through the electrode to the water. The sterilizing species may include species generated by the water itself, such as ozone, or by those dissolved in the water, such as those that oxidize chloride ions to free chlorine. The sterilization device may include, for example, an ozone generator, an ultraviolet illuminator, an ozone generator and ultraviolet illuminator, a heater, a plasma generator, a filtration device, an electrochemical sterilization device, or a combination thereof. For example, the sterilization device may include an ozone generator, an ultraviolet illuminator, or both an ozone generator and an ultraviolet illuminator, or an electrochemical sterilization device. The home toilet waste treatment system may include a sterilizing bioreactor including biologically treated liquid toilet waste transferred from the biological treatment apparatus, and the sterilizing apparatus may be connected to the sterilizing bioreactor for sterilizing treatment. In a household toilet waste treatment system, a combustion apparatus may include a container for containing solid waste and a heater for applying heat to the solid toilet waste in the container. The combustion apparatus may comprise a dryer for drying the solid waste prior to combustion. The combustion apparatus may include a fuel injector for injecting fuel into a vessel of the combustion apparatus and an igniter for igniting the fuel injected into the vessel. In addition, the combustion apparatus may include a container separate from the container of the dryer for containing the dried solid waste conveyed from the container of the dryer.

The home toilet waste treatment system may further include a dehydrator for dehydrating the anaerobically digested solid waste transferred from the AD bioreactor to the combustion apparatus and the biologically treated solid waste transferred from the biological treatment apparatus. The dehydrator may comprise an extruder, a filter, or a centrifuge. The solid waste conveyed from the biological treatment apparatus to the combustion apparatus may be non-biodegradable waste or biomass. The solid waste transferred from the biological treatment apparatus to the combustion apparatus may be a residue or an activated residue. Thus, the term "solid waste" as used in this specification may refer to a solid component, and may include not only completely dry solid waste, but also solid waste containing moisture to some extent. The moisture content in the solid waste may be, for example, in the range of 0% -99%, 0% -90%, 0% -70%, 0% -50%, 0% -40%, 5% -40%, 10% -40%, 15% -40%, 20% -40%, or 10% -30%. The water separator may be arranged between the anaerobic digestion bioreactor and the combustion device or between the biological treatment device and the combustion device.

The biological treatment apparatus may include a settling tank for settling the biologically treated waste. The settling tank may include an inlet through which the biologically treated waste may be introduced from the bioreactor of the biological treatment apparatus. In addition, the precipitation tank may be connected to a bioreactor of the biological treatment device to return the precipitate to the bioreactor, and/or may be connected to the combustion device to transfer the precipitate to the combustion device. The settling tank, bioreactor and/or combustion device may comprise a regulator, such as a pump, valve, etc., for regulating the flow rate of the water delivered.

In a domestic toilet waste treatment system, the biological treatment apparatus may be connected to a water reservoir such that the biologically treated water may be transferred to the water reservoir. The water reservoir may be a reservoir for flushing water of a solid-liquid separation toilet. The biological treatment apparatus may include a regulator, such as a valve, for regulating the flow rate of water delivered to the water reservoir. Accordingly, the home toilet waste treatment system may have a path for recycling water purified from the toilet waste to be used as flushing water.

The home toilet waste treatment system may further include a filter installed to filter the bio-treated water transferred from the bio-treatment device to the water reservoir. In the domestic toilet waste treatment system, the bio-treatment apparatus may include an exhaust port formed to exhaust gas generated during the bio-treatment process. The gas may include CH ₄ 、CO ₂ 、N ₂ Or a combination thereof.

In a home toilet waste treatment system, AD bioreactor 180 may have anaerobic conditions and contain anaerobic microorganisms. Anaerobic conditions can be achieved by: oxygen is removed by vacuum, biological respiration, or injection of inert gas. The AD bioreactor may be connected to a vacuum supply and an inert gas (e.g. N ₂ ) And a supply device. The vacuum supply may be a pump. The inert gas supply device can be N ₂ A gas supply. The anaerobic digestion bioreactor may comprise anaerobic microorganisms. Anaerobic microorganisms may be inoculated from the outside, or may be returned from the biological treatment apparatus 120 and provided in the form of residues or activated residues.

The home toilet waste treatment system may further include a solid-liquid separation bioreactor configured to separate the anaerobically digested solid toilet waste transferred from the anaerobic digestion bioreactor into solid waste and liquid waste, and the anaerobic digestion bioreactor may be connected to the solid-liquid separation bioreactor such that the anaerobically digested solid toilet waste may be transferred to the solid-liquid separation bioreactor. The solid-liquid separation bioreactor may be a settling tank. The solid-liquid separation bioreactor may be connected to a combustion device such that the separated solid waste may be transferred to the combustion device. The anaerobic digestion bioreactor may be connected to the biological treatment apparatus such that the liquid component of the anaerobically digested solid toilet waste may be transferred to the biological treatment apparatus. For example, the settling tank of the anaerobic digestion bioreactor may be connected to a biological treatment apparatus such that the liquid component of the anaerobically digested solid toilet waste may be transferred to the biological treatment apparatus. The household toilet waste treatment system may further include a solid-liquid separation bioreactor configured to separate the anaerobically digested solid toilet waste conveyed from the anaerobic digestion bioreactor into solid waste and liquid waste, wherein the anaerobic digestion bioreactor may be connected to the solid-liquid separation bioreactor to convey the anaerobically digested solid toilet waste to the solid-liquid separation bioreactor, and the solid-liquid separation bioreactor may be connected to the biological treatment device to convey the liquid component of the anaerobically digested solid toilet waste to the biological treatment device.

The anaerobic digestion bioreactor may include a vent formed to vent gases produced during the anaerobic digestion process. The gas may include CH ₄ 、CO ₂ Or mixtures thereof. The exhaust port may be configured to be connected to a combustion apparatus, and the gas may be used as a fuel for generating heat in the combustion apparatus. The combustion apparatus may comprise combustion means for combusting the dried solid waste. The exhaust port may be configured to be connected to a combustion apparatus, and the gas may be used as a fuel for generating heat in the combustion apparatus.

In an embodiment, a home toilet waste treatment system may include: a solid-liquid separation toilet 100 for separating toilet waste into liquid toilet waste and solid toilet waste; a bio-processing device 120 for bio-processing the liquid toilet waste transferred from the solid-liquid separation toilet 110; an anaerobic digestion bioreactor 180 for biologically treating the solid toilet waste transferred from the solid-liquid separation toilet 110 under anaerobic conditions; a sterilizing device 140 for sterilizing the bio-processed liquid waste transferred from the bio-processing device 120; and a combustion apparatus 164 for combusting the anaerobically digested solid toilet waste conveyed from the anaerobic digestion bioreactor and the solid toilet waste conveyed from the biological treatment apparatus 120, wherein the biological treatment apparatus 120 may include a settling tank in which the biological treated waste is settled, and the settling tank may include an inlet for introducing the biological treated waste from the bioreactor of the biological treatment apparatus 120 and may be connected to the bioreactor so that the settlement may be returned to the bioreactor of the biological treatment apparatus 120 and/or may be connected to the combustion apparatus 164 so that the settlement may be conveyed to the combustion apparatus 164.

The sterilization device may be a device provided with a sterilization medium. The sterilization medium may include steam, heat, radiation, plasma, ozone, vaporized hydrogen peroxide, vaporized peracetic acid, at least one gaseous sterilant, at least one liquid sterilant, or a filter medium. The sterilization device may comprise a heater, a radiation illuminator, an electrochemical sterilization device, or a filtration device. The electrochemical sterilization device may include an electrode, and the electrochemical generation of the sterilizing species may be initiated by flowing an electrical current through the electrode to the water. The sterilizing species may include species generated by the water itself, such as ozone, or by those dissolved in the water, such as those that oxidize chloride ions to free chlorine. The sterilization device may include, for example, an ozone generator, an ultraviolet illuminator, an ozone generator and ultraviolet illuminator, a heater, a plasma generator, a filtration device, an electrochemical sterilization device, or a combination thereof. The sterilization apparatus may include a sterilization bioreactor for containing the biologically treated liquid waste conveyed from the ozone generator, the ultraviolet illuminator, or the ozone generator, as well as from both the ultraviolet illuminator and the biological treatment apparatus 120. The sterilization apparatus may be connected to a sterilization bioreactor for sterilization. In an embodiment, the combustion apparatus may include a container for containing solid waste and a heater for applying heat to the solid toilet waste in the container. The combustion apparatus may comprise combustion means for combusting the dried solid waste. The combustion apparatus may include a fuel injector for injecting fuel into a vessel of the combustion apparatus and an igniter for igniting the fuel injected into the vessel. In addition, the combustion apparatus may include a container separate from the container of the dryer for containing the dried solid waste conveyed from the container of the dryer.

In an embodiment, the biological treatment apparatus 120 may include: an anoxic bioreactor (a) and an oxygenated bioreactor (O); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), and an anoxic bioreactor (a); an anaerobic bioreactor, an anoxic bioreactor (a), and an oxygenated bioreactor (a); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), an anoxic bioreactor (a), and an oxygen-containing bioreactor (O); anaerobic bioreactor, oxygen-containing bioreactor (O), anoxic bioreactor (a), oxygen-containing bioreactor (O), and anoxic bioreactor (a); a MUCT bioreactor; a UCT bioreactor; a sequencing batch reactor; a partial nitrification bioreactor and an anaerobic ammonia oxidation bioreactor; an anaerobic ammoxidation bioreactor; or a combination thereof.

In an embodiment, the household toilet waste treatment system may further include a solid-liquid separation bioreactor configured to separate anaerobically digested solid toilet waste transferred from the anaerobic digestion bioreactor into solid and liquid, and the anaerobic digestion bioreactor may be connected to the solid-liquid separation bioreactor such that anaerobically digested solid toilet waste may be transferred to the solid-liquid separation bioreactor. The solid-liquid separation bioreactor may be a settling tank. The solid-liquid separation bioreactor may be connected to a combustion device such that the separated solid waste may be transferred to the combustion device. The anaerobic digestion bioreactor may be connected to the biological treatment apparatus such that the liquid component of the anaerobically digested solid toilet waste may be transferred to the biological treatment apparatus. For example, the settling tank of the anaerobic digestion bioreactor may be connected to a biological treatment apparatus such that the liquid component of the anaerobically digested solid toilet waste may be transferred to the biological treatment apparatus. The household toilet waste treatment system may further include a solid-liquid separation bioreactor configured to separate the anaerobically digested solid toilet waste conveyed from the anaerobic digestion bioreactor into solid waste and liquid waste, wherein the anaerobic digestion bioreactor may be connected to the solid-liquid separation bioreactor to convey the anaerobically digested solid toilet waste to the solid-liquid separation bioreactor, and the solid-liquid separation bioreactor may be connected to the biological treatment device to convey the liquid component of the anaerobically digested solid toilet waste to the biological treatment device.

The anaerobic digestion bioreactor may include a vent formed to vent gases produced during the anaerobic digestion process. The gas may include CH ₄ 、CO ₂ Or mixtures thereof. The exhaust port may be connected to a combustion device to deliver the gas. The gas may be used as a fuel for generating heat in the combustion apparatus. The combustion apparatus may include a dryer for drying the toilet waste prior to combustion. The exhaust port may be connected to a combustion device to deliver the gas. The gas may be used as a fuel for generating heat in the combustion apparatus.

In a domestic toilet waste treatment system, elements including solid-liquid separation toilets, anaerobic digestion bioreactors, biological treatment facilities, sterilization facilities, and combustion facilities may be arranged in one structure. The home toilet waste treatment system may be a configuration in which the home toilet waste treatment system is not connected to other elements outside the structure through a pipe, or may be a configuration in which a plurality of separate toilets are connected to each other through a pipe. The home toilet may be configured as follows: wherein individual houses residing nearby are connected to each other by a pipe, or collective houses such as a row house or an apartment can be connected to each other by a pipe to convey the separated solid and liquid toilet wastes through the pipe. However, the home toilet waste treatment system may be different from an existing wastewater treatment facility in which solid and liquid toilet waste are mixed and transferred through a long pipe of several tens of kilometers.

Fig. 5 is a diagram schematically showing an example of a household toilet waste treatment system including an anaerobic digestion bioreactor. In fig. 5, the home toilet waste treatment system includes: a solid-liquid separation toilet 100; anaerobic digestion bioreactor 180; a biological treatment apparatus 120; a sterilizing device 140; a combustion device 164; and a flush water reservoir 220. The solid-liquid separation toilet 100 may be connected to the biological treatment apparatus 120 to contain the liquid of the toilet waste, and may be connected to the anaerobic digestion bioreactor 180 to contain the solids of the toilet waste. Biological treatment apparatus 120 may include a compartment 122 comprising an anaerobic bioreactor, an anoxic bioreactor, or a combination thereof, an oxygen tank 124, and a precipitation tank 200. The compartment 122 including the anaerobic bioreactor, the anoxic bioreactor, or a combination thereof may be connected to the oxygen tank 124 such that the toilet waste treated in the compartment 122 may be transferred to the oxygen tank 124. The oxygen tank 124 may be connected to the settling tank 200 such that the toilet waste treated in the oxygen tank 124 may be transferred to the settling tank 200. The settling tank 200 may be connected to the anaerobic bioreactor, the anoxic bioreactor 122, or the combustion device 164 such that a portion of the residue settled in the settling tank 200 may be transferred to the front of the anaerobic bioreactor or anoxic bioreactor 122 or to the combustion device 164. The settling tank 200 may be connected to the sterilizing apparatus 140 such that the liquid of the toilet waste treated in the settling tank 200 may be transferred to the sterilizing apparatus 140. The sterilizing apparatus 140 may be connected to the water reservoir 220 such that the toilet waste sterilized in the sterilizing apparatus 140 may be transferred to the flush water reservoir 220. The filter 240 may be connected between the sterilizing apparatus 140 and the flushing water reservoir 220 such that the toilet waste sterilized in the sterilizing apparatus 140 may be filtered and then transferred to the flushing water reservoir 220.

In addition to the anaerobic digestion bioreactor 182, the anaerobic digestion bioreactor 180 may optionally further comprise a solid-liquid separation bioreactor 184. The anaerobic digestion bioreactor 180 may include a vent 186 for venting biogas generated during anaerobic digestion. The exhaust port 186 may be connected to the combustion device 164 and the biogas may be transferred to the combustion device 164 to be used as fuel for the combustion device.

Fig. 6 is an example of a flowchart describing a toilet waste treatment process by using an example of the home toilet waste treatment system of fig. 5. As shown in fig. 6, in the solid-liquid separation toilet 100, the toilet waste may be separated into liquid (i.e., urine and water) and solid (i.e., excrement including feces and water). In the biological treatment apparatus 120, the liquid may undergo anoxic reactions and oxygen-containing digestions in the compartment 122 and the oxygen tank 124, respectively, comprising anaerobic bioreactors, anoxic bioreactors, or combinations thereof, and then sterilized and decolorized in the sterilizing apparatus 140. The sterilized waste may then optionally be filtered and transferred to the flush water reservoir 220. At the same time, the solids may be anaerobically digested and some of the liquid resulting therefrom may be sent to compartment 182 and oxygen tank 124 in biological treatment device 120 that contains anaerobic bioreactors, anoxic bioreactors, or a combination thereof. The remaining solid waste, such as residue, may optionally be pressed or dewatered and then dried and burned in a combustion device 164. Here, a portion of the heat generated in the combustion device 164 may be used to dry the dewatered and recovered solids. In addition, biogas generated during the anaerobic digestion process in the anaerobic digestion bioreactor 180 may be sent to the combustion apparatus 164 for use as fuel. In addition, after anaerobic digestion in anaerobic digestion bioreactor 180, some of the liquid components may be sent to sterilization apparatus 140 for sterilization or decolorization. In addition, liquids produced during the process of squeezing or dewatering solids, such as residues, produced in the anaerobic digestion bioreactor 180 may be sent to the compartment 122 and oxygen tank 124 containing anaerobic bioreactors, anoxic bioreactors, or combinations thereof in the biological treatment apparatus 120.

In another aspect, there is provided a method of treating toilet waste, the method comprising: separating the toilet waste into liquid toilet waste and solid toilet waste by throwing the toilet waste into a solid-liquid separation toilet; delivering the separated solid toilet waste to a combustion apparatus for combustion and delivering the separated liquid toilet waste to a bio-treatment apparatus for bio-treatment; delivering the biologically treated liquid waste to a sterilizing device for sterilization; a portion of the residue of the biologically treated liquid waste is transferred to a combustion device and a portion of the residue is transferred to an anoxic bioreactor of the biological treatment device to be supplemented with microorganisms.

The separation of the toilet waste into the liquid toilet waste and the solid toilet waste may be configured to have a solid separation rate and a liquid separation rate that provide the liquid toilet waste in an amount less than or equal to an average COD amount that may be consumed in the bioreactor. For example, the separation of the toilet waste into the solid and liquid toilet waste may be configured to have a solid separation rate and a liquid separation rate of 50% -100%, respectively. The solid separation rate refers to a ratio of separating the solid component of the introduced toilet waste into solids. The solids separation rate can be calculated as follows: proportion of total solids separated from TSS in the incoming toilet waste. The liquid separation rate refers to a ratio of separating the liquid component of the introduced toilet waste into liquids. The liquid separation rate can be calculated as follows: the proportion of the total volume of the portion of the introduced toilet waste in which the total volume is separated into liquid. The solids separation rate may be, for example, in the range of 60% -100%, 70% -100%, 80% -100%, 90% -100%, 95% -100%, 97.5% -100%, 60% -95%, 70% -90%, 80% -95%, 90% -95%, 95% -97.5%, or 70% -95%. In addition, the liquid separation rate may be, for example, in the range of 60% -100%, 70% -100%, 80% -100%, 90% -100%, 95% -100%, 97.5% -100%, 60% -95%, 70% -90%, 80% -95%, 90% -95%, 95% -97.5%, or 70% -95%. For example, solid waste toilet may be separated at a separation rate of greater than or equal to 90% and transferred to a combustion apparatus, and liquid waste toilet may be separated at a separation rate of greater than or equal to 80% and transferred to a biological treatment apparatus. The separation may be performed simultaneously with defecation and urination. The separation may be performed immediately after defecation and urination without storing feces and urine. The solid-liquid separation toilet may include a solid collecting unit and a liquid collecting unit. TSS can be calculated as a ratio expressed in percent obtained by: the solids that failed to pass through a Watman 934-AH filter or similar filter having a level of 1um to 2um pore size were dried.

Transferring the separated solid toilet waste to a combustion apparatus for drying and transferring the separated liquid toilet waste to a bio-treatment apparatus for bio-treatment may further include dehydrating the separated solid toilet waste before being transferred to the combustion apparatus. The separated solid toilet waste may have a moisture content in the range of 70% -99%, 80% -99%, or 90% -99%. The dewatering may be performed by means selected from the group consisting of extruders, centrifuges and filters. Delivering the separated solid toilet waste to a combustion apparatus for drying may include combusting the dried separated solid waste. Combustion may be performed in a combustion apparatus. The combustion apparatus may be integrated with the dryer.

The combustion apparatus may include, for example, a fuel injector and an igniter in a vessel in which the dried separated solid waste is contained in the combustion apparatus. In addition, the dryer may exist separately from the combustion apparatus.

In this method, the biological treatment apparatus 120 may include: an anoxic bioreactor (a) and an oxygenated bioreactor (O); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), and an anoxic bioreactor (a); an anaerobic bioreactor, an anoxic bioreactor (a), and an oxygenated bioreactor (a); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), an anoxic bioreactor (a), and an oxygen-containing bioreactor (O); anaerobic bioreactor, oxygen-containing bioreactor (O), anoxic bioreactor (a), oxygen-containing bioreactor (O), and anoxic bioreactor (a); a MUCT bioreactor; a UCT bioreactor; a sequencing batch reactor; a partial nitrification bioreactor and an anaerobic ammonia oxidation bioreactor; an anaerobic ammoxidation bioreactor; or a combination thereof.

The biological treatment apparatus may comprise a precipitation tank at the end portion. The biological treatment apparatus may be connected in such a way that liquid may be returned from the oxygen-containing bioreactor to the anoxic bioreactor in front of the oxygen-containing bioreactor. The oxygen-containing bioreactor may be arranged individually or at the end of several oxygen-containing bioreactors. The anoxic bioreactors may be arranged individually or in front of several anoxic bioreactors. The biological treatment apparatus may include an internal circulation pump for internal return. The oxygen-containing bioreactor may include an oxygen supply. In the anoxic bioreactor, nitrate nitrogen that has undergone nitrification in the anoxic bioreactor may be converted into nitrogen gas through a denitrification reaction. DO levels in the anoxic bioreactor may be about 0mg/L or in the range of about 0mg/L to about 0.2mg/L, about 0mg/L to about 0.15mg/L, about 0mg/L to about 0.1mg/L, about 0mg/L to about 0.05mg/L, about 0mg/L to about 0.01mg/L, or about 0mg/L to about 0.005 mg/L. The anoxic bioreactor may include a stirrer instead of an oxygen supply. In the oxygen-containing bioreactor, phosphorus released from the anaerobic bioreactor can be removed by over-consuming microorganisms, and ammonia nitrogen in the waste can be oxidized to nitrate nitrogen by nitrification. In addition, organic materials that are not removed in the anaerobic digestion bioreactor and the anoxic bioreactor may also be removed in the anoxic bioreactor. DO concentration in the oxygen-containing bioreactor may be in the range of 2.0mg/L to 3.0mg/L, 2.0mg/L to 2.5mg/L, or 2.5mg/L to 3.0 mg/L. In an anaerobic digestion bioreactor, organic matter may be decomposed to produce organic acids, which are then subjected to anaerobic digestion. Here, the microorganism may secrete phosphorus. The anaerobic digestion bioreactor may include a stirrer for mixing. The anaerobic digestion bioreactor may not include an oxygen supply, e.g., an air supply. The DO concentration in the anaerobic digestion bioreactor may be about 0mg/L or in the range of about 0mg/L to about 0.005 mg/L.

Sterilization may be performed by a sterilization apparatus. The sterilization apparatus may be any sterilization apparatus known in the art of a household toilet waste treatment system. The sterilization apparatus may be connected to the bioreactor for use. The sterilization apparatus may be disposed in one structure with other elements of the home toilet waste treatment system, rather than in a separate structure.

The sterilization device may be a device provided with a sterilization medium. The sterilization medium may include steam, heat, radiation, plasma, ozone, vaporized hydrogen peroxide, vaporized peracetic acid, at least one gaseous sterilant, at least one liquid sterilant, or a filter medium. The sterilization device may comprise a heater, a radiation illuminator, an electrochemical sterilization device, or a filtration device. The electrochemical sterilization device may include an electrode, and the electrochemical generation of the sterilizing species may be initiated by flowing an electrical current through the electrode to the water. The sterilizing species may include species generated by the water itself, such as ozone, or by those dissolved in the water, such as those that oxidize chloride ions to free chlorine. The sterilization device may include, for example, an ozone generator, an ultraviolet illuminator, an ozone generator and ultraviolet illuminator, a heater, a plasma generator, a filtration device, an electrochemical sterilization device, or a combination thereof. For example, sterilization may be performed by an ultraviolet illuminator, an ozone generator, or both an ultraviolet illuminator and an ozone generator. Sterilization may be achieved by contacting the biologically treated liquid waste with a liquid comprising ozone. The contacting may be achieved by flowing the biologically treated liquid waste and the ozone containing liquid in countercurrent.

The method may include transferring the liquid sterilized in the sterilizing step to a washing water reservoir. Here, the liquid may be water. The method may further comprise filtering the sterilized liquid before being transferred to the flush water reservoir.

The method may include transferring a portion of the residue of the biologically treated liquid waste to a combustion device for drying and transferring a portion of the residue waste to an anoxic bioreactor of the biological treatment device to be supplemented with microorganisms.

Here, the residue may be a precipitate in the precipitation tank. The ratio of residues transferred to the anoxic bioreactor may be adjusted in the range of 0% -100% to maintain the concentration of Mixed Liquor Suspended Solids (MLSS) in the anoxic bioreactor. Typically, this ratio may be in the range of 20% -60%. The ratio of residues transferred to the combustion device may refer to the amount of residues remaining after returning to the anoxic bioreactor and may be adjusted in the range of 0% -100%. Typically, this ratio may be in the range of 40% -80%.

The method may refer to a method of treating toilet waste, including throwing the toilet waste into a solid-liquid separation toilet of a home toilet waste treatment system, wherein the home toilet waste treatment system may include: a solid-liquid separation toilet 100 for separating toilet waste into liquid toilet waste and solid toilet waste; a bio-processing apparatus 120 for bio-processing liquid toilet waste transferred from the solid-liquid separation toilet; a sterilizing device 140 for sterilizing the bio-processed liquid waste transferred from the bio-processing device; and a combustion apparatus 164 for drying the solid toilet waste transferred from the solid-liquid separation toilet and the biologically treated solid waste transferred from the biological treatment apparatus. In the treatment of toilet waste, the household toilet waste treatment system is the same as described above.

In another aspect, there is provided a method of treating toilet waste, the method comprising: separating the toilet waste into liquid toilet waste and solid toilet waste by throwing the toilet waste into a solid-liquid separation toilet; transferring the separated solid toilet waste to an anaerobic digestion bioreactor for anaerobic digestion; delivering the liquid toilet waste separated at the separation step and the liquid waste dissolved at the anaerobic digestion step to a biological treatment apparatus for biological treatment; delivering the biologically treated liquid waste to a sterilizing device for sterilization; delivering a portion of the residue of the liquid waste biologically treated at the biological treatment step to a combustion device for combustion and delivering a portion of the residue to an anoxic bioreactor of the biological treatment device to be supplemented with microorganisms; and transferring the residue obtained in the anaerobic digestion step to a combustion device for combustion.

The separation of the toilet waste into the liquid toilet waste and the solid toilet waste may be configured to have a solid separation rate and a liquid separation rate suitable for providing the liquid toilet waste in an amount less than or equal to an average COD amount that can be consumed in the bioreactor. For example, the separation of the toilet waste into the solid and liquid toilet waste may be configured to have a solid separation rate and a liquid separation rate of 50% -100%, respectively. The solid separation rate refers to a ratio of separating the solid component of the introduced toilet waste into solids. The solids separation rate can be calculated as follows: proportion of total solids separated from TSS in the incoming toilet waste. The liquid separation rate refers to a ratio of separating the liquid component of the introduced toilet waste into liquids. The liquid separation rate can be calculated as follows: the proportion of the total volume of the portion of the introduced toilet waste in which the total volume is separated into liquid. The solids separation rate may be, for example, in the range of 60% -100%, 70% -100%, 80% -100%, 90% -100%, 95% -100%, 97.5% -100%, 60% -95%, 70% -90%, 80% -95%, 90% -95%, 95% -97.5%, or 70% -95%. In addition, the liquid separation rate may be, for example, in the range of 60% -100%, 70% -100%, 80% -100%, 90% -100%, 95% -100%, 97.5% -100%, 60% -95%, 70% -90%, 80% -95%, 90% -95%, 95% -97.5%, or 70% -95%. For example, solid waste toilet may be separated at a separation rate of greater than or equal to 90% and transferred to a combustion apparatus, and liquid waste toilet may be separated at a separation rate of greater than or equal to 80% and transferred to a biological treatment apparatus. The separation may be performed simultaneously with defecation and urination. The separation may be performed immediately after defecation and urination without storing feces and urine. The solid-liquid separation toilet may include a solid collecting unit and a liquid collecting unit.

The method includes transferring the separated solids to an anaerobic digester for anaerobic digestion. In an anaerobic digestion bioreactor, organic matter may be decomposed to produce organic acids, which are then subjected to anaerobic digestion. Here, the microorganism may secrete phosphorus. The anaerobic digestion bioreactor may include a stirrer for mixing. The anaerobic digestion bioreactor may not include an oxygen supply, e.g., an air supply. The DO concentration in the anaerobic digestion bioreactor may be about 0mg/L or in the range of about 0mg/L to about 0.005 mg/L.

The method may include transferring the liquid toilet waste separated at the separation step and the liquid waste dissolved at the anaerobic digestion step to a biological treatment apparatus for biological treatment.

In biological treatment, the biological treatment apparatus may be a bioreactor that does not include an anaerobic digestion bioreactor, or a combination thereof. Bioreactors that do not include an anaerobic digestion bioreactor may include an anaerobic bioreactor, an anoxic bioreactor, an oxygenated bioreactor, or a combination thereof. Such a combination may include the following: wherein the at least one anoxic bioreactor is connected to the at least one oxygenated bioreactor such that the liquid toilet waste treated in the preceding bioreactor reaction is transferred to the following bioreactor for continuous treatment.

Additionally, the biological treatment apparatus may optionally include an Anaerobic Digestion (AD) bioreactor. The AD bioreactor may be arranged in combination with: a bioreactor that does not include an AD bioreactor, or a combination thereof. The AD bioreactor may be arranged in front of a bioreactor not including the AD bioreactor, or a combination thereof, such that liquid toilet waste transferred from the solid-liquid separation toilet may flow in, and organic matter may be dissolved by anaerobic digestion. The AD bioreactor may further comprise a settling tank connected thereto for settling anaerobically digested liquid toilet waste conveyed from the AD bioreactor. The settling tank may be connected to the combustion apparatus to transfer the solid components settled in the liquid toilet waste to the combustion apparatus. The settling tank may be connected to a bioreactor, e.g., a bioreactor that does not include an AD bioreactor, or a combination thereof, to transfer liquid components that are not settled in the liquid toilet waste to a subsequently connected bioreactor. The AD bioreactor may include a vent formed to vent gases generated during the anaerobic digestion process. The gas may include CH ₄ 、CO ₂ Or N ₂ And (3) gas. When the biological treatment apparatus 120 includes the anaerobic digestion bioreactor 180', the anaerobically digested waste conveyed from the anaerobic digestion bioreactor 180 in which the solid waste is subjected to anaerobic digestion may be conveyed to a bioreactor that does not include an anaerobic digestion bioreactor, or a combination thereof.

The biological treatment apparatus may comprise a precipitation tank at the end portion. The biological treatment apparatus may be connected in such a way that liquid may be returned from the oxygen-containing bioreactor to the anoxic bioreactor in front of the oxygen-containing bioreactor. The oxygen-containing bioreactor may be arranged individually or at the end of several oxygen-containing bioreactors. The anoxic bioreactors may be arranged individually or in front of several anoxic bioreactors. The biological treatment apparatus may include an internal circulation pump for internal return. The oxygen-containing bioreactor may include an oxygen supply. In the anoxic bioreactor, nitrate nitrogen that has undergone nitrification in the anoxic bioreactor may be converted into nitrogen gas through a denitrification reaction. DO levels in the anoxic bioreactor may be about 0mg/L or in the range of about 0mg/L to about 0.2mg/L, about 0mg/L to about 0.15mg/L, about 0mg/L to about 0.1mg/L, about 0mg/L to about 0.05mg/L, about 0mg/L to about 0.01mg/L, or about 0mg/L to about 0.005 mg/L. The anoxic bioreactor may include a stirrer instead of an oxygen supply. In the oxygen-containing bioreactor, phosphorus released from the anaerobic bioreactor can be removed by over-consuming microorganisms, and ammonia nitrogen in the waste can be oxidized to nitrate nitrogen by nitrification. In addition, organic materials that are not removed in the anaerobic digestion bioreactor and the anoxic bioreactor may also be removed in the anoxic bioreactor. DO concentration in the oxygen-containing bioreactor may be in the range of 0.2mg/L to 7.0mg/L, 1.0mg/L to 5.0mg/L, 1.0mg/L to 4.0mg/L, or 1.0mg/L to 3.0 mg/L. In an anaerobic digestion bioreactor, organic matter may be decomposed to produce organic acids, which are then subjected to anaerobic digestion. Here, the microorganism may secrete phosphorus. The anaerobic digestion bioreactor may include a stirrer for mixing. The anaerobic digestion bioreactor may not include an oxygen supply, e.g., an air supply. The DO concentration in the anaerobic digestion bioreactor may be about 0mg/L or in the range of about 0mg/L to about 0.005 mg/L.

The ratio of liquid waste that is dissolved at the anaerobic digestion step and transferred to the biological treatment apparatus may be in the range of 10% -100%.

The sterilizing step may include delivering the liquid sterilized by use of the ultraviolet irradiator, the ozone generator, or both the ultraviolet irradiator and the ozone generator to the rinse water reservoir. Here, the liquid may be water. The method may further comprise filtering the sterilized liquid before being transferred to the flush water reservoir.

The method may include: in biological treatment, a portion of the residue of the biologically treated liquid waste is transferred to a combustion device for combustion and a portion of the residue is transferred to an anoxic bioreactor of the biological treatment device to be supplemented with microorganisms; and transferring the residue obtained in the anaerobic digestion step to a combustion device for combustion.

In the above step, the method may further comprise dehydrating a portion of the residue obtained in the anaerobic digestion step and the residue of the biologically treated liquid waste prior to transfer to the combustion apparatus. The dehydrated residue may have a moisture content in the range of 60% -90%. The dewatering may be performed by means selected from the group consisting of extruders, centrifuges and filters. In the above steps, the method may include burning the dried separated solid waste. The dried residue may have a moisture content in the range of 0% -40%. Combustion may be performed in a combustion apparatus. The combustion apparatus may be integrated with the dryer. The combustion apparatus may include, for example, a fuel injector and an igniter in a vessel in which the dried separated solid waste is contained in the combustion apparatus. In addition, the dryer may exist separately from the combustion apparatus.

Here, the residue may be a precipitate in the precipitation tank. The ratio of residues transferred to the anoxic bioreactor may be adjusted in the range of 0% -100% to maintain the concentration of MLSS in the anoxic bioreactor. Typically, this ratio may be in the range of 20% -60%. The ratio of residues transferred to the combustion device may refer to the amount of residues remaining after returning to the anoxic bioreactor and may be adjusted in the range of 0% -100%. Typically, this ratio may be in the range of 40% -80%.

The anoxic bioreactors may be arranged individually or in front of several anoxic bioreactors. The biological treatment apparatus may include an internal circulation pump for internal return. The oxygen-containing bioreactor may include an oxygen supply. In the anoxic bioreactor, nitrate nitrogen that has undergone nitrification in the anoxic bioreactor may be converted into nitrogen gas through a denitrification reaction. DO levels in the anoxic bioreactor may be about 0mg/L or in the range of about 0mg/L to about 0.2mg/L, about 0mg/L to about 0.15mg/L, about 0mg/L to about 0.1mg/L, about 0mg/L to about 0.05mg/L, about 0mg/L to about 0.01mg/L, or about 0mg/L to about 0.005 mg/L. The anoxic bioreactor may include a stirrer instead of an oxygen supply. In the oxygen-containing bioreactor, phosphorus released from the anaerobic bioreactor can be removed by over-consuming microorganisms, and ammonia nitrogen in the waste can be oxidized to nitrate nitrogen by nitrification. In addition, organic materials that are not removed in the anaerobic digestion bioreactor and the anoxic bioreactor may also be removed in the anoxic bioreactor. DO concentration in the oxygen-containing bioreactor may be in the range of 0.2mg/L to 7.0mg/L, 1.0mg/L to 5.0mg/L, 1.0mg/L to 4.0mg/L, or 1.0mg/L to 3.0 mg/L. In an anaerobic digestion bioreactor, organic matter may be decomposed to produce organic acids, which are then subjected to anaerobic digestion. Here, the microorganism may secrete phosphorus. The anaerobic digestion bioreactor may include a stirrer for mixing. The anaerobic digestion bioreactor may not include an oxygen supply, e.g., an air supply. The DO concentration in the anaerobic digestion bioreactor may be about 0mg/L or in the range of about 0mg/L to about 0.005 mg/L.

Drawings

Fig. 1 is a diagram schematically showing an example of a household toilet waste treatment system.

Fig. 2 is an example of a flowchart describing a toilet waste treatment process by using an example of the home toilet waste treatment system of fig. 1.

Fig. 3 is a diagram schematically showing an example of a home toilet waste treatment system including an anaerobic digestion bioreactor 180'.

Fig. 4 is an example of a flowchart describing a toilet waste treatment process by using an example of the home toilet waste treatment system including the anaerobic digestion bioreactor 180' of fig. 3.

Fig. 5 is a diagram schematically showing an example of a household toilet waste treatment system including an anaerobic digestion bioreactor.

Fig. 6 is an example of a flowchart describing a toilet waste treatment process by using an example of the home toilet waste treatment system of fig. 5.

FIG. 7 is a schematic diagram of an AD-AO bioreactor.

FIG. 8 is a schematic of an AD-mAO bioreactor.

Fig. 9 is a diagram illustrating an ozone generator connected to the AD-mAO bioreactor and a process of sterilizing an effluent from the AD-mAO bioreactor by using the ozone generator.

Fig. 10 is a diagram showing the claimed household toilet waste treatment system and illustrating a flow chart by which 10 human parts per day of toilet waste are treated.

Fig. 11 is a diagram schematically showing an example of the claimed home toilet waste treatment system including an anaerobic bioreactor.

Fig. 12 is a view schematically showing another example of the claimed household toilet waste treatment system.

Detailed Description

Hereinafter, the present disclosure will be described in detail with reference to examples. However, these embodiments are provided for illustrative purposes only, and the scope of the present disclosure is not limited thereto.

Example 1: biological treatment apparatus comprising oxygen-containing bioreactor and toilet waste treatment using the same

In this embodiment, several bioreactors each including an oxygen-containing bioreactor are prepared and used for treating toilet waste. For use as toilet waste, simulated feces and urine with flush water and without paper reported by Swiss Federal Institute of Aquatic Science and Technology (EAWAG) was used. The actual faeces and urine were then used for re-verification.

As bioreactors, the following four bioreactors were prepared: AO, AOA, AD-AO, and AD-mAO.

Here, a denotes an anoxic bioreactor, O denotes an aerobic bioreactor, AD denotes an anaerobic digestion bioreactor, and mAO denotes a unit in which the anoxic bioreactor and the aerobic bioreactor are connected is repeated an integer number of m times. In this embodiment, mAO where m is 4 is used. AO represents an anoxic bioreactor and an anoxic bioreactor arranged in sequence and connected to each other to transfer liquid waste treated in the anoxic bioreactor to the anoxic bioreactor. AOA means that AO is connected to a further anoxic bioreactor for transferring liquid waste treated in the anoxic bioreactor of AO to the further anoxic bioreactor. The oxygen-containing bioreactor may comprise an oxygen supply for supplying oxygen. The oxygen supply may be a jet device or an air supply. The AD bioreactor and the anoxic bioreactor may each comprise a stirrer. AD-AO means that the AD bioreactor is connected to AO, wherein in AO the anoxic bioreactor is connectable to the oxygenated bioreactor to return the liquid waste treated in the oxygenated bioreactor internally to the anoxic bioreactor. AD-AO is simple and may be potentially miniaturized. AD-mAO shows that 4 (sets of) subsequent anaerobic and anoxic bioreactors are connected to the anaerobic digestion bioreactor AD, where the AO bioreactors are repeatedly used to save energy and increase processing speed. Undegraded solids in the AD bioreactor are periodically removed by precipitation. Thus, the AD bioreactor may be connected to a precipitation tank.

10 human parts of simulated feces and urine were treated in each bioreactor. Simulated feces and urine were prepared by the method described in R.Penn et al, water Research 132 (2018) 222-240, and simulated urine was prepared according to the method described in the corresponding paper by Colon et al 2015.

One person simulated faeces and urine comprises 3kg faeces/day, 15L urine/day, and 100L flushing water/day. Feces contained 75% water and urine contained 96% water. Table 1 shows the simulated faeces and urine components.

TABLE 1

First, with respect to the AO bioreactor and the AOA bioreactor, 10 human parts per day of simulated feces and urine were put into the anoxic bioreactor (a) without liquid/solid separation, and then an anoxic reaction and an oxygen-containing reaction were sequentially performed. As a result, the water quality of the effluent released from the final biological reactions of AO and AOA (i.e. oxygen-containing bioreactor and anoxic bioreactor), respectively, was evaluated. The standard for toilet waste treatment according to ISO 30500 is shown in Table 2 below (Doulaye Kone, world Toilet Summit, expo. Sao Paolo, brazil, nov.18-19,2019.).

TABLE 2

Quality of effluent	Class A	Class B
			COD(mg/l)	≤50	≤150
TSS(mg/l)	≤10	≤30
			Total Nitrogen (TN)	More than or equal to 70 percent of decrease
Total Phosphorus (TP)	More than or equal to 80 percent of decrease
			pH	6-9

In table 2, category a shows the threshold for non-limiting urban use. Category B shows the threshold for surface water discharge or other limiting urban use. As a result, when simulated feces and urine were put into the AO bioreactor and the AOA bioreactor and treated, it was found that COD and turbidity were high in the AO bioreactor and the AOA bioreactor. Meanwhile, with regard to the AD-AO bioreactor and the AD-mAO bioreactor, 10 parts per day of simulated feces and urine in which liquid and solid are separated are put into the anaerobic digestion bioreactor (AD), and then, only the liquid dissolved in the anaerobic digestion bioreactor (AD) is allowed to flow into the anoxic bioreactor (a) and the oxygen-containing bioreactor (O). As a result, the water quality of the effluent released from the final biological reaction (i.e., oxygen-containing bioreactor) of the AD-AO bioreactor and the AD-mAO bioreactor was evaluated.

FIG. 7 is a schematic diagram of an AD-AO bioreactor. As shown in FIG. 7, the AD-AO bioreactor includes an anaerobic digestion bioreactor, an anoxic bioreactor, an oxygen-containing bioreactor, and a precipitation tank. The anaerobic digestion bioreactor may include an inlet for introducing liquid toilet waste. The anaerobic digestion bioreactor and the anoxic bioreactor may each include a stirrer for stirring the liquid toilet waste. The AD bioreactor is connected to the anoxic bioreactor to transfer anaerobically digested liquid toilet waste to the anoxic bioreactor. In addition, the anoxic bioreactor is connected to the anoxic bioreactor to transfer the anoxic treated liquid toilet waste to the anoxic bioreactor. The oxygen-containing bioreactor is connected to the settling tank to deliver the oxygen-containing treated liquid toilet waste to the settling tank. In addition, the oxygen-containing bioreactor is connected to the anoxic bioreactor to transfer a portion of the oxygen-containing treated liquid toilet waste to the anoxic bioreactor. In addition, the oxygen-containing bioreactor includes an oxygen supply or an air supply. The settling tank is connected to the anoxic bioreactor to externally return the settled waste to the anoxic bioreactor. Thus, the precipitated waste in the precipitation tank may be externally returned to the anoxic bioreactor. In addition, the settling tank is connected to the combustion device to transfer the settled waste to the combustion device. Thus, the precipitated waste in the precipitation tank may be externally transferred to the combustion device. As shown in fig. 7, a carbon dissolution reaction occurs in the anaerobic digestion bioreactor AD, a denitrification reaction occurs in the anoxic bioreactor a, and a nitrification reaction occurs in the oxygenated bioreactor O.

Table 3 shows the results of evaluating the quality of the effluent discharged from the anaerobic digestion bioreactor AD after 3 months of operation when 10 parts per day of simulated feces and urine were separated into solids and liquids and the separated liquids were fed to the anaerobic digestion bioreactor AD. Here, the temperature of the anaerobic digestion bioreactor AD was 35 ℃, and the temperature of the oxygen-containing bioreactor was 25 ℃, and the operation lasted 3 months.

TABLE 3 Table 3

Entries	Inflow (mg/L)	Effluent (mg/L)	Removal rate (%)	ISO standard	Description of the invention
						TCOD	8,909	334	96	<150mg/L	Additional ozone treatment is required
TN	1,021	229	78	>70％	Reach the standard

In addition, by using the same AD-AO bioreactor and using actual feces and urine instead of simulated feces and urine, actual feces and urine are treated according to the same procedure. The results are shown in Table 4. As shown in table 4, COD and TN values were similar to or better than those using simulated feces and urine.

TABLE 4 Table 4

Entries	Inflow (mg/L)	Effluent (mg/L)	Removal rate (%)	ISO standard	Description of the invention
						TCOD	10,775	520	95	<150mg/L	Additional ozone treatment is required
TN	1,006	212	79	>70％	Reach the standard

FIG. 8 is a schematic of an AD-mAO bioreactor. As shown in FIG. 8, the AD-mAO bioreactor includes an anaerobic digestion bioreactor AD and 4 trains of subsequent anaerobic and aerobic bioreactors. The anaerobic digestion bioreactor may include an inlet for introducing liquid toilet waste. The anaerobic digestion bioreactor and the anoxic bioreactor may each include a stirrer for stirring the liquid toilet waste. The anaerobic digestion bioreactor is connected to the anoxic bioreactor to transfer the anaerobically digested liquid toilet waste to the anoxic bioreactor. In addition, the anoxic bioreactor is connected to the anoxic bioreactor to transfer the anoxic treated liquid toilet waste to the anoxic bioreactor. The oxygen-containing bioreactor is connected to the anoxic bioreactor to transfer the liquid toilet waste treated with oxygen to the anoxic bioreactor installed therebehind.

In addition, an oxygen-containing bioreactor disposed at the end is connected to the anoxic bioreactor to transfer a portion of the oxygen-containing treated liquid toilet waste to the anoxic bioreactor. In addition, the oxygen-containing bioreactor includes an oxygen supply or an air supply. In fig. 8, the anoxic bioreactor is distinguished from the aerobic bioreactor according to the amount of dissolved oxygen depending on ventilation.

Table 5 shows the results of evaluating the quality of the effluent discharged from the anaerobic digestion bioreactor AD after 2 months of operation when 10 parts per day of simulated feces and urine were used and separated into solids and liquids and the separated liquids were fed to the anaerobic digestion bioreactor AD. Here, the temperature of the anaerobic digestion bioreactor AD was reduced from 35 ℃ to 25 ℃ and maintained, and the temperature of the oxygen-containing bioreactor was 25 ℃, and the operation continued for 2 months. In addition, in the oxygen-containing bioreactor, the concentration of the microorganism is increased, and for the stability of the concentration of the microorganism, a microorganism carrier is contained.

TABLE 5

Entries	Inflow (mg/L)	Effluent (mg/L)	Removal rate (%)	ISO standard	Description of the invention
						TCOD	8,909	270-340	97	<150mg/L	Additional ozone treatment is required
TN	1,021	220	78	>70％	Reach the standard

As shown in tables 3, 4 and 5, when the AD-AO bioreactor and the AD-mAO bioreactor are used and only liquid toilet waste obtained by separating the toilet waste into solid toilet waste and liquid toilet waste is put into the bioreactor for treatment, COD is about 300mg/L, which is good but is not included in the ISO 30500 standard. TN removal was 78% and was included in the ISO 30500 standard. Thus, in order to meet the COD requirements according to the ISO 30500 standard, the effluent is intended to undergo an additional COD reduction process. The COD reduction process may be, for example, ozone treatment or membrane filtration. It was confirmed that ozone treatment has not only a sterilizing effect but also a COD reduction and turbidity reduction effect.

Example 2: biological treatment apparatus comprising ozone generator and oxygen-containing bioreactor and toilet waste treatment using the same

In this embodiment, an ozone treatment device as a sterilizer is connected to a biological treatment apparatus including an oxygen-containing bioreactor to prepare the biological treatment apparatus including the ozone treatment device and the oxygen-containing bioreactor, and the toilet waste is treated by using the same. A biological treatment apparatus comprising an oxygen-containing bioreactor uses the AD-mAO (m=4) bioreactor described in example 1, and the ozone treatment device is arranged to ozone treat an inflow in the ozone treatment device delivered from AD-mAO (where m=4). The ozone treatment device comprises an ozone generator and a container for containing or flowing the generated ozone. The container is configured to miniaturize the bubble size of the ozonated air to increase the contact area between ozone and effluent and is connected to have a fluid flow counter-current to the direction of effluent flow. In addition, the vessel is configured to have a plurality of compartments, for example 5 compartments, in such a way that ozonated air supplied from an ozone generator and effluent delivered from an AD-mAO bioreactor (where m=4) have countercurrent fluid flow. As an ozone generator, LAB-I device (180W power consumption) of OzeneTech inc.

The ozone generator is configured to convert oxygen in the air into ozone by generating high frequency waves. To reduce the power consumption of the ozone generator, the chromaticity of the effluent and COD reduction conditions are sought by on/off control. As a result, the treatment time and energy required to achieve the standards according to effluent COD are shown in table 5. After ozone treatment, the chromaticity of the effluent changed from cloudy to clear.

TABLE 6

As shown in Table 6, when the effluent TCOD is 300mg/L, 5.3 hours of device operation will reach the target 150mg/L and a power of 0.95kWh/d is required. In addition, as the effluent TCOD increases to 350mg/L and 400mg/L, the time to reach standard and the energy required increases. These increases indicate that the effluent COD needs to be reduced to save energy. In general, the sterilization of microorganisms is sufficient with ozone treatment only within 1 hour. In addition, sterilization of the toilet liquid waste treated by ozone, reduction of COD, and reduction of chromaticity can be improved by the combined use of UV irradiation. In addition, the claimed household toilet waste treatment system may transfer solid waste from a biological treatment facility, an anaerobic digestion bioreactor, or a solid-liquid separation toilet to a combustion facility for drying and combustion. The claimed household toilet waste treatment system may sterilize microorganisms and parasites during the solids treatment process. Thus, the COD remaining in the liquid waste of the toilet is reduced. Fig. 9 is a diagram illustrating an ozone generator connected to the AD-mAO bioreactor and a process of sterilizing an effluent discharged from the AD-mAO bioreactor by using the ozone generator. In fig. 9, the ozone treatment device has a vessel comprising five compartments for providing ozonated air generated in the ozone treatment device in a counter-current direction relative to the effluent.

Example 3: simulation of toilet waste treatment by using a domestic toilet waste treatment system

For a household toilet waste treatment system having the bioreactor configuration shown in table 7, the treatment of household toilet waste was simulated. This simulation confirms whether the claimed household toilet waste treatment system can be miniaturized and achieve treatment efficiency. The simulation was performed using a wastewater treatment model and GPS-X simulation software (Hydromantis Environmental Software Solutions, inc.). From this simulation, it was attempted to find a process capable of achieving an effluent COD of less than or equal to 150mg/L and a removal of TN and TP of greater than or equal to 70% and greater than or equal to 80%, respectively, in a bioreactor having a volume within 350L. The simulation results are shown in table 7.

TABLE 7

The solids separation efficiency refers to the percentage of the original feces that did not experience loss to the mixed solution containing feces. When a part of the solid toilet waste is lost to the liquid toilet waste through flushing water or urine, the solid separation efficiency is lowered. Liquid separation efficiency refers to the percentage of urine or flush water that does not experience loss from the initial amount to the mixed solution. When liquid toilet waste is mixed with feces and enters into a mixed solution containing solids, the liquid separation efficiency is lowered. In table 7, in the AD-A2O or AD-AO process with AD prefix, the liquid having undergone AD is sent to a dehydrator, and the dehydrated liquid and the liquid waste separated from the toilet are mixed and transferred to an oxygen-containing bioreactor. The residue precipitate generated during the oxygen-containing treatment is sent to a dehydrator to be mixed with the AD-treated liquid and dehydrated.

In table 7, abbreviations represent the following meanings.

AO: anoxic-oxic process, AOA: anaerobic-oxygen-anoxic process, A2O: anaerobic-anoxic-aerobic process, bardenpho: anoxic-oxic-anoxic-oxic process, AD-AO: anaerobic digestion-anoxic-aerobic process, AD-A2O: an anaerobic-anoxic-aerobic process; and HRT: hydraulic retention time.

As shown in table 7, a total of 6 biological treatment processes and 7 solid-liquid separation cases were simulated. The 6 biological treatment processes are A2O, 4 stage bardenpho, AO, AOA, AD-A2O, and AD-AO. First, when the toilet waste is treated only by the oxygen-containing process without being separated into solid and liquid toilet waste, the COD, TN and TP do not meet the treatment standards in all of the processes reviewed. The processes reviewed include A2O, bardenpho, AO and AOA processes.

In addition, the toilet waste is separated into solid and liquid toilet waste by changing a separation rate, and then, a simulation treatment is performed in such a manner that the separated solid toilet waste is treated through an anaerobic digestion bioreactor (AD) and the separated liquid toilet waste is treated through an oxygen-containing treatment process (i.e., an A2O or AO process). As a result, the effluent quality standard is satisfied in all processes in which the toilet waste is separated into solid toilet waste and liquid toilet waste, the solid toilet waste is treated in the anaerobic digestion bioreactor, and the liquid toilet waste is subjected to the oxygen-containing treatment. In the case of the solid/liquid separation efficiency of case 2 (i.e. 90% solids separation efficiency and 80% liquid separation efficiency), the effluent quality standard according to ISO 30500 is also met in AD-AO (which is the simplest process). That is, the effluent quality standard according to ISO 30500 can be satisfied by a domestic toilet waste treatment apparatus including a biological treatment apparatus using a process (e.g., AO, A2O, AOA, etc.) having an oxygen-containing bioreactor combined with an AD, a solid-liquid separation toilet, and a dehydrator. In an example of a domestic toilet waste treatment system, the solids separation efficiency may be in the range of about 85% to about 95%, and the liquid separation efficiency may be in the range of about 75% to about 85%. In the example of a household toilet waste treatment system, the toilet waste may be continuously treated in a system integrated into a household unit without piping the toilet waste to an external biological treatment apparatus and/or an external anaerobic digestion bioreactor. Also, in the example of a domestic toilet waste treatment system, water purified from the toilet waste may be recycled as flushing water in the solid separation type toilet. In addition, biogas, such as methane, produced in the anaerobic digestion bioreactor can be used as fuel in a combustion plant.

Fig. 10 is a diagram showing the claimed household toilet waste treatment system and illustrating a flow chart by which 10 human parts per day of toilet waste are treated. As shown in fig. 10, examples of the home toilet waste treatment system include: a solid-liquid separation toilet 100; a biological treatment apparatus 120 comprising a buffer tank 102, an anoxic bioreactor 122, an oxygenated bioreactor 124, and a precipitation tank 200; a sterilizing device 140; an anaerobic digestion bioreactor 180, a dehydrator 186, and a combustion device 164. The liquid in the toilet waste put into the solid-liquid separation toilet 110 may be transferred to the buffer tank 102 and stored in the buffer tank 102, and a portion of the liquid may be introduced into the anoxic bioreactor 122 for anoxic treatment and then transferred to the anoxic bioreactor. A portion of the oxygenated liquid waste in the oxygenated bioreactor may be returned to the anoxic bioreactor while another portion may be transferred to the settling tank. The biologically treated liquid waste transferred to the settling tank may be settled by settling. A portion of the liquid in the settling tank may be transferred to a sterilizing device, sterilized, and then discharged through an outlet. A portion of the residues in the settling tank 200 may be transferred to the front of the anoxic bioreactor and then transferred to the anoxic bioreactor along with the liquid waste transferred from the buffer tank. A portion of the residue in the settling tank 200 may be transferred to the dehydrator 186, dehydrated, and then transferred to the combustion device 164 for drying and combustion. The combustion apparatus may optionally include a dryer. In addition, if present, the dryer may be present separately and connected to the combustion device.

The solid of the toilet waste put into the solid-liquid separation toilet 100 may be transferred to the anaerobic digestion bioreactor 180, and the anaerobically treated and dissolved liquid may be transferred to the buffer tank 260. The anaerobically treated solid waste (i.e., residue) in the anaerobic digestion bioreactor 180 may be conveyed to a dehydrator 186, dehydrated, and then conveyed to a combustion device 164 for drying and combustion.

Fig. 11 is a diagram schematically showing an example of the claimed home toilet waste treatment system including an anaerobic bioreactor. As shown in fig. 11, examples of the home toilet waste treatment system include: a biological treatment apparatus 120 comprising an oxygen-containing bioreactor 124; an ozone generator 140 and a UV irradiator 240 as sterilizing devices; a solid-liquid separation toilet 100; anaerobic digestion bioreactor 180; a precipitation tank 182; conveyor 188 (e.g., a conveyor screw or auger), dehydrator 186, dryer 162, sub-burner 160, flush water reservoir 220, and biogas loader 260. The dehydrator 186, dryer 162, and sub-combustion device 160 form a single unit and may constitute a combustion apparatus 164. In an example of the household toilet waste treatment system, the liquid in the toilet waste put into the solid-liquid separation toilet 100 may be sent to the biological treatment apparatus 120 for oxygen-containing treatment, and then sent to the sterilizing apparatus 140 for sterilization and decoloration and COD removal. The oxygenated liquid waste may then be sent to the flush water reservoir 220 and used as toilet flush water. The solid waste (e.g., residues) transferred from the anaerobic digestion bioreactor 180 and the biological treatment apparatus 120 may be transferred to the dehydrator 186 by the transfer device 188, dehydrated, and then transferred to the dryer 162 and the sub-combustion device 160 for drying and combustion. In fig. 10, the biogas generated in the bioreactor may be stored or maintained in a biogas loader 160 and then transferred to a combustion device 164.

As shown in fig. 12, examples of the home toilet waste treatment system include: a biological treatment apparatus 120 comprising an oxygen-containing bioreactor 124; an ozone generator 140 and an ultraviolet irradiator 240 as sterilizing devices; a solid-liquid separation toilet 100; a dehydrator 186; a dryer 162; a sub-combustion device 160; a washing water reservoir 220; a transfer device 188; and a solids reservoir 158. The solids storage 158 may store solid toilet waste conveyed from the solid-liquid separation toilet 100 and/or solids (e.g., residues) conveyed from the biological treatment apparatus 120. The dehydrator 186, dryer 162, and sub-combustion device 160 form a single unit and may constitute a combustion apparatus 164. The solids reservoir 158 may comprise an impregnator. The stored solids may be transferred to a dehydrator 186 by transfer means 188 and then to a dryer 162 and a sub-combustion device 160 for drying and combustion.

Claims

1. A home toilet waste treatment system, comprising: a solid-liquid separation toilet for separating toilet waste into liquid toilet waste and solid toilet waste; a biological treatment apparatus for biologically treating liquid toilet waste transferred from the solid-liquid separation toilet; a sterilizing device for sterilizing the biologically treated liquid waste transferred from the biological treatment device; and a combustion apparatus for combusting the solid toilet waste conveyed from the solid-liquid separation toilet and the biologically treated solid waste conveyed from the biological treatment apparatus.

2. The home toilet waste treatment system of claim 1, wherein the solid-liquid separation toilet comprises a liquid collecting unit for containing the separated liquid toilet waste and a solid collecting unit for containing the separated solid toilet waste.

3. The home toilet waste treatment system of claim 1, wherein the solid-liquid separation toilet is configured to have a solid separation rate and a liquid separation rate of 50% -100%, respectively.

4. The home toilet waste treatment system of claim 1, wherein the bio-treatment device comprises: an anoxic bioreactor (a) and an oxygenated bioreactor (O); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), and an anoxic bioreactor (a); an anaerobic bioreactor, an anoxic bioreactor (a), and an oxygen-containing bioreactor (O); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), an anoxic bioreactor (a), and an oxygen-containing bioreactor (O); anaerobic bioreactor, oxygen-containing bioreactor (O), anoxic bioreactor (a), oxygen-containing bioreactor (O), and anoxic bioreactor (a); a MUCT bioreactor; a UCT bioreactor; a sequencing batch reactor; a partial nitrification bioreactor and an anaerobic ammonia oxidation bioreactor; an anaerobic ammoxidation bioreactor; or a combination thereof.

5. The home toilet waste treatment system of claim 1, wherein the bio-treatment facility comprises an Anaerobic Digestion (AD) bioreactor.

6. The home toilet waste treatment system of claim 5, wherein the AD bioreactor is arranged at the front such that liquid toilet waste transferred from the solid-liquid separation toilet flows in and organic substances are dissolved by anaerobic digestion.

7. The home toilet waste treatment system of claim 5, further comprising a settling tank connected to the AD bioreactor and settling anaerobically digested liquid toilet waste transferred from the AD bioreactor.

8. The home toilet waste treatment system of claim 1, wherein the sterilizing device comprises an ozone generator, an ultraviolet illuminator, or a combination thereof.

9. The home toilet waste treatment system of claim 1, wherein the combustion apparatus further comprises a dryer for drying the toilet waste.

10. The home toilet waste treatment system of claim 1, further comprising a dehydrator for dehydrating the solid toilet waste transferred from the solid-liquid separation toilet to the combustion apparatus, the biologically treated solid toilet waste transferred from the biological treatment apparatus to the combustion apparatus, or a combination thereof.

11. The home toilet waste treatment system of claim 1, wherein the bio-treatment apparatus further comprises a settling tank for settling the bio-treated toilet waste.

12. The home toilet waste treatment system of claim 1, wherein the bio-treatment device is connected to the water reservoir such that bio-treated toilet water can be transferred to the water reservoir.

13. A home toilet waste treatment system, comprising: a solid-liquid separation toilet for separating toilet waste into liquid toilet waste and solid toilet waste; a biological treatment apparatus for biologically treating liquid toilet waste transferred from the solid-liquid separation toilet; an Anaerobic Digestion (AD) bioreactor for biologically treating solid toilet waste conveyed from the solid-liquid separation toilet under anaerobic conditions; a sterilizing device for sterilizing the biologically treated liquid waste transferred from the biological treatment device; and a combustion apparatus for combusting the anaerobically digested solid toilet waste transferred from the anaerobic digestion bioreactor and the biologically treated solid toilet waste transferred from the biological treatment apparatus.

14. The home toilet waste treatment system of claim 13, wherein the solid-liquid separation toilet comprises a liquid collecting unit for containing the separated liquid toilet waste and a solid collecting unit for containing the separated solid toilet waste.

15. The home toilet waste treatment system of claim 13, wherein the solid-liquid separation toilet is configured to have a solid separation rate and a liquid separation rate of 50% -100%, respectively.

16. The home toilet waste treatment system of claim 13, wherein the bio-treatment device comprises: an anoxic bioreactor (a) and an oxygenated bioreactor (O); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), and an anoxic bioreactor (a); an anaerobic bioreactor, an anoxic bioreactor (a), and an oxygen-containing bioreactor (O); an anoxic bioreactor (a), an oxygen-containing bioreactor (O), an anoxic bioreactor (a), and an oxygen-containing bioreactor (O); anaerobic bioreactor, oxygen-containing bioreactor (O), anoxic bioreactor (a), oxygen-containing bioreactor (O), and anoxic bioreactor (a); a MUCT bioreactor; a UCT bioreactor; a sequencing batch reactor; a partial nitrification bioreactor and an anaerobic ammonia oxidation bioreactor; an anaerobic ammoxidation bioreactor; or a combination thereof.

17. The home toilet waste treatment system of claim 13, wherein the sterilizing device comprises an ozone generator, an ultraviolet illuminator, or a combination thereof.

18. The home toilet waste treatment system of claim 13, wherein the combustion apparatus further comprises a dryer for drying the toilet waste.

19. The home toilet waste treatment system of claim 13, further comprising a dehydrator for dehydrating the anaerobically digested solid toilet waste conveyed from the AD bioreactor, the biologically treated solid toilet waste conveyed from the biological treatment facility, or a combination thereof.

20. The home toilet waste treatment system of claim 13, wherein the bio-treatment apparatus further comprises a settling tank for settling the bio-treated toilet waste.

21. The domestic toilet waste treatment system of claim 20, wherein the settling tank is connected to a bioreactor of the biological treatment apparatus to return the sediment to the bioreactor, or to the combustion apparatus to transfer the sediment to the combustion apparatus.

22. The home toilet waste treatment system of claim 13, further comprising a solid-liquid separation bioreactor for separating anaerobically digested solid toilet waste conveyed from the AD bioreactor into solid waste and liquid waste, wherein the AD bioreactor is connected to the solid-liquid separation bioreactor to convey anaerobically digested solid toilet waste to the solid-liquid separation bioreactor.

23. The home toilet waste treatment system of claim 22, wherein the solid-liquid separation bioreactor is connected to the combustion device such that the separated solid waste can be transferred to the combustion device.

24. The home toilet waste treatment system of claim 13, wherein the AD bioreactor is connected to the bio-treatment facility such that a liquid component of the anaerobically digested solid toilet waste can be transferred to the bio-treatment facility.

25. The domestic toilet waste treatment system of claim 13, further comprising a solid-liquid separation bioreactor for separating anaerobically digested solid toilet waste conveyed from the AD bioreactor into solid waste and liquid waste, wherein the AD bioreactor is connected to the solid-liquid separation bioreactor to convey anaerobically digested solid toilet waste to the solid-liquid separation bioreactor, and the solid-liquid separation bioreactor is connected to the biological treatment device to convey liquid components of anaerobically digested solid toilet waste to the biological treatment device.

26. A method of treating toilet waste, the method comprising: feeding the toilet waste into a solid-liquid separation toilet of a home toilet waste treatment system, wherein the home toilet waste treatment system comprises: a solid-liquid separation toilet for separating toilet waste into liquid toilet waste and solid toilet waste; a biological treatment apparatus for biologically treating liquid toilet waste transferred from the solid-liquid separation toilet; a sterilizing apparatus for sterilizing the bio-treated liquid toilet waste transferred from the bio-treatment apparatus; and a combustion apparatus for combusting the solid toilet waste conveyed from the solid-liquid separation toilet and the biologically treated solid waste conveyed from the biological treatment apparatus.

27. A method of treating toilet waste, the method comprising: feeding the toilet waste into a solid-liquid separation toilet of a home toilet waste treatment system, wherein the home toilet waste treatment system comprises: a solid-liquid separation toilet for separating toilet waste into liquid toilet waste and solid toilet waste; a biological treatment apparatus for biologically treating liquid toilet waste transferred from the solid-liquid separation toilet; an Anaerobic Digestion (AD) bioreactor for biologically treating solid toilet waste conveyed from the solid-liquid separation toilet under anaerobic conditions; a sterilizing device for sterilizing the biologically treated liquid waste transferred from the biological treatment device; and a combustion apparatus for combusting the anaerobically digested solid toilet waste transferred from the anaerobic digestion bioreactor and the biologically treated solid toilet waste transferred from the biological treatment apparatus.